Ubuntu-fr

malbo

Conversion Legacy vers UEFI avec Boot-repair version 4ppa75

1) Etat de départ : une installation merdique de Ubuntu 20.04 en mode Legacy (non-EFI) alors que Windows 10 est préinstallé en mode EFI. Pour réparer cela, il est impératif de le faire depuis une session live de Ubuntu démarrée en mode EFI. Je choisis d'utiliser une session live de Ubuntu 20.04 mais il doit être possible de faire cette réparation depuis une 18.04.4 
Boot-info depuis une session live de Ubuntu 20.04 démarrée en mode EFI : http://paste.ubuntu.com/p/yjRDXzM3B7/
Je colle ci-dessous ce Boot-info :

Boot Info Script 71f6c5c + Boot-Repair extra info      [Boot-Info 16mar2020]


============================= Boot Info Summary: ===============================

 => Grub2 (v2.00) is installed in the MBR of /dev/sda and looks at sector 
    76562768 of the same hard drive for core.img. core.img is at this location 
    and looks for (,gpt5)/boot/grub. It also embeds following components:
    
    modules
    ---------------------------------------------------------------------------
    fshelp ext2 part_gpt biosdisk
    ---------------------------------------------------------------------------
 => libparted MBR boot code is installed in the MBR of /dev/sdb.

sda1: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        

sda2: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  Windows 8/2012: FAT32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /EFI/ubuntu/grub.cfg /efi/BOOT/bkpbootx64.efi 
                       /efi/BOOT/bootx64.efi /efi/BOOT/fbx64.efi 
                       /efi/BOOT/grubx64.efi /efi/BOOT/mmx64.efi 
                       /efi/ubuntu/fwupx64.efi /efi/ubuntu/grubx64.efi 
                       /efi/ubuntu/mmx64.efi /efi/ubuntu/shimx64.efi 
                       /efi/ubuntu/grub.cfg /efi/Microsoft/Boot/bootmgfw.efi 
                       /efi/Microsoft/Boot/bootmgr.efi 
                       /efi/Microsoft/Boot/memtest.efi

sda3: __________________________________________________________________________

    File system:       
    Boot sector type:  -
    Boot sector info: 

sda4: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /bootmgr /Windows/System32/winload.exe

sda5: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu Focal Fossa (development branch)
    Boot files:        /boot/grub/grub.cfg /etc/fstab 
                       /boot/grub/i386-pc/core.img

sdb1: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  
    Boot files:        

============================ Drive/Partition Info: =============================

Drive: sda _____________________________________________________________________
Disk /dev/sda: 40.33 GiB, 43294556160 bytes, 84559680 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1                   1    84,559,679    84,559,679  ee GPT


GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sda1                 2,048       923,647       921,600 Windows Recovery Environment (Windows)
/dev/sda2               923,648     1,126,399       202,752 EFI System partition
/dev/sda3             1,126,400     1,159,167        32,768 EFI System partition
/dev/sda4             1,159,168    50,636,799    49,477,632 Data partition (Windows/Linux)
/dev/sda5            50,636,800    84,557,823    33,921,024 Data partition (Linux)

Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More bits set

Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 32 GiB, 34359738368 bytes, 67108864 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdb1               2,048    67,108,863    67,106,816  83 Linux


"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0                                              squashfs   
/dev/sda1        72E8CBBEE8CB7EBB                       ntfs       Récupération
/dev/sda2        C4D1-8AAE                              vfat       
/dev/sda3                                                          
/dev/sda4        B606ECD606EC989F                       ntfs       
/dev/sda5        6ed2f53a-c172-4eff-9038-491af9c7457b   ext4       
/dev/sdb1        6c14aa5c-a67b-4211-afd2-42ff350e60b0   ext4       images_win10_EFI
/dev/sr0         2020-02-20-07-51-12-00                 iso9660    Ubuntu 20.04 LTS amd64

========================= "ls -l /dev/disk/by-id" output: ======================

total 0
lrwxrwxrwx 1 root root  9 Mar 24  2020 ata-VBOX_CD-ROM_VB1-1a2b3c4d -> ../../sr0
lrwxrwxrwx 1 root root  9 Mar 24 14:12 ata-VBOX_HARDDISK_VB2db79605-645acf7a -> ../../sda
lrwxrwxrwx 1 root root 10 Mar 24 14:19 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Mar 24 14:12 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Mar 24 14:12 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Mar 24 14:19 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Mar 24 14:12 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part5 -> ../../sda5
lrwxrwxrwx 1 root root  9 Mar 24 14:12 ata-VBOX_HARDDISK_VB8e816ea2-fefc916f -> ../../sdb
lrwxrwxrwx 1 root root 10 Mar 24 14:12 ata-VBOX_HARDDISK_VB8e816ea2-fefc916f-part1 -> ../../sdb1

================================ Mount points: =================================

Device           Mount_Point              Type       Options

/dev/fuse        /run/user/999/doc        fuse       (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/dev/loop0       /rofs                    squashfs   (ro,noatime)
/dev/sr0         /cdrom                   iso9660    (ro,noatime,nojoliet,check=s,map=n,blocksize=2048)


========================== sda2/EFI/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 7867687a-23dd-4ba9-a158-f3781c9d569e root hd0,gpt5 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

========================== sda2/efi/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 7867687a-23dd-4ba9-a158-f3781c9d569e root hd0,gpt5 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

=========================== sda5/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${initrdfail}" = 2 ]; then
   set initrdfail=
elif [ "${initrdfail}" = 1 ]; then
   set next_entry="${prev_entry}"
   set prev_entry=
   save_env prev_entry
   if [ "${next_entry}" ]; then
      set initrdfail=2
   fi
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}
function initrdfail {
    if [ -n "${have_grubenv}" ]; then if [ -n "${partuuid}" ]; then
      if [ -z "${initrdfail}" ]; then
        set initrdfail=1
        if [ -n "${boot_once}" ]; then
          set prev_entry="${default}"
          save_env prev_entry
        fi
      fi
      save_env initrdfail
    fi; fi
}
function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt5'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
else
  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=fr_FR
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=30
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=hidden
    set timeout=0
  # Fallback hidden-timeout code in case the timeout_style feature is
  # unavailable.
  elif sleep --interruptible 0 ; then
    set timeout=0
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
	set gfxpayload="${1}"
	if [ "${1}" = "keep" ]; then
		set vt_handoff=vt.handoff=7
	else
		set vt_handoff=
	fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-6ed2f53a-c172-4eff-9038-491af9c7457b' {
	recordfail
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
	insmod part_gpt
	insmod ext2
	set root='hd0,gpt5'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
	else
	  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
	fi
	linux	/boot/vmlinuz-5.4.0-18-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-5.4.0-18-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-6ed2f53a-c172-4eff-9038-491af9c7457b' {
	menuentry 'Ubuntu, with Linux 5.4.0-18-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-18-generic-advanced-6ed2f53a-c172-4eff-9038-491af9c7457b' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
		else
		  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
		fi
		echo	'Loading Linux 5.4.0-18-generic ...'
		linux	/boot/vmlinuz-5.4.0-18-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-18-generic
	}
	menuentry 'Ubuntu, with Linux 5.4.0-18-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-18-generic-recovery-6ed2f53a-c172-4eff-9038-491af9c7457b' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
		else
		  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
		fi
		echo	'Loading Linux 5.4.0-18-generic ...'
		linux	/boot/vmlinuz-5.4.0-18-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-18-generic
	}
	menuentry 'Ubuntu, with Linux 5.4.0-14-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-14-generic-advanced-6ed2f53a-c172-4eff-9038-491af9c7457b' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
		else
		  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
		fi
		echo	'Loading Linux 5.4.0-14-generic ...'
		linux	/boot/vmlinuz-5.4.0-14-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-14-generic
	}
	menuentry 'Ubuntu, with Linux 5.4.0-14-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-14-generic-recovery-6ed2f53a-c172-4eff-9038-491af9c7457b' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
		else
		  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
		fi
		echo	'Loading Linux 5.4.0-14-generic ...'
		linux	/boot/vmlinuz-5.4.0-14-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-14-generic
	}
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/10_linux_zfs ###
### END /etc/grub.d/10_linux_zfs ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry 'Memory test (memtest86+)' {
	insmod part_gpt
	insmod ext2
	set root='hd0,gpt5'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
	else
	  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
	fi
	knetbsd	/boot/memtest86+.elf
}
menuentry 'Memory test (memtest86+, serial console 115200)' {
	insmod part_gpt
	insmod ext2
	set root='hd0,gpt5'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
	else
	  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
	fi
	linux16	/boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------

=============================== sda5/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda5 during installation
UUID=6ed2f53a-c172-4eff-9038-491af9c7457b /               ext4    errors=remount-ro 0       1
/swapfile                                 none            swap    sw              0       0
--------------------------------------------------------------------------------

=================== sda5: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

  36.508068085 = 39.200239616   boot/grub/grub.cfg                             3
  36.507995605 = 39.200161792   boot/grub/i386-pc/core.img                     1
  30.789169312 = 33.059618816   boot/vmlinuz                                   2
  27.387691498 = 29.407309824   boot/vmlinuz-5.4.0-14-generic                  2
  30.789169312 = 33.059618816   boot/vmlinuz-5.4.0-18-generic                  2
  27.387691498 = 29.407309824   boot/vmlinuz.old                               2
  31.236404419 = 33.539833856   boot/initrd.img                                1
  31.188690186 = 33.488601088   boot/initrd.img-5.4.0-14-generic               3
  31.236404419 = 33.539833856   boot/initrd.img-5.4.0-18-generic               1
  31.188690186 = 33.488601088   boot/initrd.img.old                            3

=============================== StdErr Messages: ===============================

File descriptor 9 (/proc/5441/mountinfo) leaked on lvs invocation. Parent PID 16661: bash

ADDITIONAL INFORMATION :
=================== log of boot-repair 20200324_1411 ===================
boot-repair version : 4ppa75
boot-sav version : 4ppa75
boot-sav-extra version : 4ppa75
glade2script version : 3.2.4~ppa6
Warning: Unable to open /dev/sr0 read-write (Read-only file system).  /dev/sr0 has been opened read-only.
boot-repair is executed in live-session (Ubuntu Focal Fossa (development branch), focal, Ubuntu, x86_64)
CPU op-mode(s):                  32-bit, 64-bit
Address sizes:                   48 bits physical, 48 bits virtual
BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed quiet splash ---

=================== os-prober:
/dev/sda2@/efi/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi
/dev/sda5:Ubuntu Focal Fossa (development branch) (20.04):Ubuntu:linux

=================== blkid:
/dev/sda1: LABEL="RM-CM-)cupM-CM-)ration" UUID="72E8CBBEE8CB7EBB" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="07380664-6dd4-4925-aeac-a435b34ad9f5"
/dev/sda2: UUID="C4D1-8AAE" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="1ab7abb3-31e4-4289-9a3a-587ac6546242"
/dev/sda4: UUID="B606ECD606EC989F" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="63728c63-f8c6-4f3b-8882-3688c4f80734"
/dev/sda5: UUID="6ed2f53a-c172-4eff-9038-491af9c7457b" TYPE="ext4" PARTUUID="54392d5d-1996-4c62-8842-d91f4a33b602"
/dev/sdb1: LABEL="images_win10_EFI" UUID="6c14aa5c-a67b-4211-afd2-42ff350e60b0" TYPE="ext4" PARTUUID="52caac94-01"
/dev/sr0: UUID="2020-02-20-07-51-12-00" LABEL="Ubuntu 20.04 LTS amd64" TYPE="iso9660" PTUUID="72b2b8e0" PTTYPE="dos"
/dev/loop0: TYPE="squashfs"
/dev/sda3: PARTLABEL="Microsoft reserved partition" PARTUUID="c21c3b27-c875-4428-a0d8-0c431338197b"


1 disks with OS, 2 OS : 1 Linux, 0 MacOS, 1 Windows, 0 unknown type OS.

Windows not detected by os-prober on sda4.
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda2/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/bkpbootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/grubx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/mmx64.efi
Presence of bkp file detected: /mnt/boot-sav/sda2/EFI/BOOT/bkpbootx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 24 13:33 grub.d
total 128
-rwxr-xr-x 1 root root 10627 Feb  6 17:37 00_header
-rwxr-xr-x 1 root root  6258 Feb  6 17:20 05_debian_theme
-rwxr-xr-x 1 root root 17123 Feb  6 17:37 10_linux
-rwxr-xr-x 1 root root 38596 Mar 11 16:46 10_linux_zfs
-rwxr-xr-x 1 root root 12894 Feb  6 17:37 20_linux_xen
-rwxr-xr-x 1 root root  1992 Feb 13 23:09 20_memtest86+
-rwxr-xr-x 1 root root 12059 Feb  6 17:37 30_os-prober
-rwxr-xr-x 1 root root  1424 Mar 11 16:46 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Feb  6 17:37 40_custom
-rwxr-xr-x 1 root root   216 Feb  6 17:37 41_custom
-rw-r--r-- 1 root root   483 Feb  6 17:37 README




=================== sda5/etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"



ls /sys/firmware/efi/vars : new_var,del_var,boot-args-7c436110-ab2a-4bbb-a880-fe41995c9f82,Test1-e660597e-b94d-4209-9c80-1805b5d19b69,Test0-e660597e-b94d-4209-9c80-1805b5d19b69,RTC-378d7b65-8da9-4773-b6e4-a47826a833e1,PlatformLangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c,PlatformLang-8be4df61-93ca-11d2-aa0d-00e098032b8c,OsIndicationsSupported-8be4df61-93ca-11d2-aa0d-00e098032b8c,MemoryTypeInformation-4c19049f-4137-4dd3-9c10-8b97a83ffdfa,MTC-eb704011-1402-11d3-8e77-00a0c969723b,LangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c,Lang-8be4df61-93ca-11d2-aa0d-00e098032b8c,FirmwareFeaturesMask-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,FirmwareFeatures-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,ConOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConOut-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConInDev-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConIn-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootOptionSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootCurrent-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0003-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0002-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0001-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0000-8be4df61-93ca-11d2-aa0d-00e098032b8c,BackgroundClear-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,
Please report this message to boot.repair@gmail.com

=================== efibootmgr -v
BootCurrent: 0000
BootOrder: 0000,0001,0002,0003
Boot0000* EFI DVD/CDROM	PciRoot(0x0)/Pci(0xd,0x0)/Sata(1,0,0)
Boot0001* EFI Hard Drive	PciRoot(0x0)/Pci(0xd,0x0)/Sata(0,0,0)
Boot0002* EFI Hard Drive 1	PciRoot(0x0)/Pci(0xd,0x0)/Sata(2,0,0)
Boot0003* EFI Internal Shell	MemoryMapped(11,0x2100000,0x28fffff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)

=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot maybe enabled. (maybe sec-boot, Please report this message to boot.repair@gmail.com)


=================== PARTITIONS & DISKS:
sda1	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	recovery-or-hidden,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda1.
sda2	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	is-correct-EFI,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda2.
sda4	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	haswinload,	no-recov-nor-hid,	bootmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda4.
sda5	: sda,	not-sepboot,	grubenv-ok	grub2,	grub-pc ,	update-grub,	64,	with-boot,	is-os,	not--efi--part,	fstab-without-boot,	fstab-without-efi,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	apt-get,	grub-install,	with--usr,	fstab-without-usr,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda5.
sdb1	: sdb,	maybesepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sdb1.

sda	: GPT,	no-BIOS_boot,	has-correctEFI, 	not-usb,	not-mmc, has-os,	2048 sectors * 512 bytes
sdb	: not-GPT,	BIOSboot-not-needed,	has-no-EFIpart, 	not-usb,	not-mmc, no-os,	2048 sectors * 512 bytes


=================== parted -lm:

BYT;
/dev/sda:43.3GB:scsi:512:512:gpt:ATA VBOX HARDDISK:;
1:1049kB:473MB:472MB:ntfs:Basic data partition:diag;
2:473MB:577MB:104MB:fat32:EFI system partition:boot, esp;
3:577MB:593MB:16.8MB::Microsoft reserved partition:boot, esp;
4:593MB:25.9GB:25.3GB:ntfs:Basic data partition:msftdata;
5:25.9GB:43.3GB:17.4GB:ext4::;

BYT;
/dev/sdb:34.4GB:scsi:512:512:msdos:ATA VBOX HARDDISK:;
1:1049kB:34.4GB:34.4GB:ext4::;

BYT;
/dev/sr0:2743MB:scsi:2048:2048:mac:VBOX CD-ROM:;
1:2048B:6143B:4096B::Apple:;
2:2299MB:2303MB:4063kB::EFI:;

=================== lsblk:
KNAME TYPE FSTYPE    SIZE LABEL
loop0 loop squashfs    2G
sda   disk          40.3G
sda1  part ntfs      450M Récupération
sda2  part vfat       99M
sda3  part            16M
sda4  part ntfs     23.6G
sda5  part ext4     16.2G
sdb   disk            32G
sdb1  part ext4       32G images_win10_EFI
sr0   rom  iso9660   2.6G Ubuntu 20.04 LTS amd64

KNAME ROTA RO RM STATE   MOUNTPOINT
loop0    1  1  0         /rofs
sda      1  0  0 running
sda1     1  0  0         /mnt/boot-sav/sda1
sda2     1  0  0         /mnt/boot-sav/sda2
sda3     1  0  0
sda4     1  0  0         /mnt/boot-sav/sda4
sda5     1  0  0         /mnt/boot-sav/sda5
sdb      1  0  0 running
sdb1     1  0  0         /mnt/boot-sav/sdb1
sr0      1  0  1 running /cdrom


=================== mount:
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,noexec,relatime,size=969560k,nr_inodes=242390,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,noexec,relatime,size=203424k,mode=755)
/dev/sr0 on /cdrom type iso9660 (ro,noatime,nojoliet,check=s,map=n,blocksize=2048)
/dev/loop0 on /rofs type squashfs (ro,noatime)
/cow on / type overlay (rw,relatime,lowerdir=/filesystem.squashfs,upperdir=/cow/upper,workdir=/cow/work)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup2 on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
none on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=27,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=16550)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,relatime)
tmpfs on /run/user/999 type tmpfs (rw,nosuid,nodev,relatime,size=203420k,mode=700,uid=999,gid=999)
gvfsd-fuse on /run/user/999/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/dev/fuse on /run/user/999/doc type fuse (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/dev/sda1 on /mnt/boot-sav/sda1 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda2 on /mnt/boot-sav/sda2 type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sda4 on /mnt/boot-sav/sda4 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda5 on /mnt/boot-sav/sda5 type ext4 (rw,relatime)
/dev/sdb1 on /mnt/boot-sav/sdb1 type ext4 (rw,relatime)


=================== ls:
/sys/block/sda (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro sda1 sda2 sda3 sda4 sda5 size slaves stat subsystem trace uevent
/sys/block/sdb (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro sdb1 size slaves stat subsystem trace uevent
/sys/block/sr0 (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro size slaves stat subsystem trace uevent
/dev (filtered):  autofs block bsg btrfs-control bus cdrom char console core cpu_dma_latency cuse disk dri dvd ecryptfs fb0 fd full fuse hidraw0 hpet hugepages hwrng i2c-0 initctl input kmsg lightnvm log mapper mcelog mem mqueue net null port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sda2 sda3 sda4 sda5 sdb sdb1 sg0 sg1 sg2 shm snapshot snd sr0 stderr stdin stdout udmabuf uhid uinput urandom userio vboxguest vboxuser vfio vga_arbiter vhci vhost-net vhost-vsock zero zfs
ls /dev/mapper:  control

=================== hexdump -n512 -C /dev/sda1
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff 0f 0e 00 00 00 00 00  |................|
00000030  00 96 00 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  bb 7e cb e8 be cb e8 72  |.........~.....r|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda2
00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 02 0e 1a  |.X.MSDOS5.0.....|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 18 0e 00  |........?.......|
00000020  00 18 03 00 f9 02 00 00  00 00 00 00 02 00 00 00  |................|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  80 01 29 ae 8a d1 c4 4e  4f 20 4e 41 4d 45 20 20  |..)....NO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 33 c9 8e d1 bc f4  |  FAT32   3.....|
00000060  7b 8e c1 8e d9 bd 00 7c  88 56 40 88 4e 02 8a 56  |{......|.V@.N..V|
00000070  40 b4 41 bb aa 55 cd 13  72 10 81 fb 55 aa 75 0a  |@.A..U..r...U.u.|
00000080  f6 c1 01 74 05 fe 46 02  eb 2d 8a 56 40 b4 08 cd  |...t..F..-.V@...|
00000090  13 73 05 b9 ff ff 8a f1  66 0f b6 c6 40 66 0f b6  |.s......f...@f..|
000000a0  d1 80 e2 3f f7 e2 86 cd  c0 ed 06 41 66 0f b7 c9  |...?.......Af...|
000000b0  66 f7 e1 66 89 46 f8 83  7e 16 00 75 39 83 7e 2a  |f..f.F..~..u9.~*|
000000c0  00 77 33 66 8b 46 1c 66  83 c0 0c bb 00 80 b9 01  |.w3f.F.f........|
000000d0  00 e8 2c 00 e9 a8 03 a1  f8 7d 80 c4 7c 8b f0 ac  |..,......}..|...|
000000e0  84 c0 74 17 3c ff 74 09  b4 0e bb 07 00 cd 10 eb  |..t.<.t.........|
000000f0  ee a1 fa 7d eb e4 a1 7d  80 eb df 98 cd 16 cd 19  |...}...}........|
00000100  66 60 80 7e 02 00 0f 84  20 00 66 6a 00 66 50 06  |f`.~.... .fj.fP.|
00000110  53 66 68 10 00 01 00 b4  42 8a 56 40 8b f4 cd 13  |Sfh.....B.V@....|
00000120  66 58 66 58 66 58 66 58  eb 33 66 3b 46 f8 72 03  |fXfXfXfX.3f;F.r.|
00000130  f9 eb 2a 66 33 d2 66 0f  b7 4e 18 66 f7 f1 fe c2  |..*f3.f..N.f....|
00000140  8a ca 66 8b d0 66 c1 ea  10 f7 76 1a 86 d6 8a 56  |..f..f....v....V|
00000150  40 8a e8 c0 e4 06 0a cc  b8 01 02 cd 13 66 61 0f  |@............fa.|
00000160  82 74 ff 81 c3 00 02 66  40 49 75 94 c3 42 4f 4f  |.t.....f@Iu..BOO|
00000170  54 4d 47 52 20 20 20 20  00 00 00 00 00 00 00 00  |TMGR    ........|
00000180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001a0  00 00 00 00 00 00 00 00  00 00 00 00 0d 0a 45 72  |..............Er|
000001b0  72 2e 20 64 69 73 71 75  65 ff 0d 0a 50 72 65 73  |r. disque...Pres|
000001c0  73 65 7a 20 75 6e 65 20  74 6f 75 63 68 65 20 70  |sez une touche p|
000001d0  6f 75 72 20 72 65 64 82  6d 61 72 72 65 72 0d 0a  |our red.marrer..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 00 00  ac 01 ba 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda4
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 b0 11 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff f7 f2 02 00 00 00 00  |................|
00000030  00 00 0c 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  9f 98 ec 06 d6 ec 06 b6  |................|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== df -Th:

Filesystem     Type      Size  Used Avail Use% Mounted on
udev           devtmpfs  947M     0  947M   0% /dev
tmpfs          tmpfs     199M  1.4M  198M   1% /run
/dev/sr0       iso9660   2.6G  2.6G     0 100% /cdrom
/dev/loop0     squashfs  2.0G  2.0G     0 100% /rofs
/cow           overlay   994M  325M  669M  33% /
tmpfs          tmpfs     994M   16M  978M   2% /dev/shm
tmpfs          tmpfs     5.0M  4.0K  5.0M   1% /run/lock
tmpfs          tmpfs     994M     0  994M   0% /sys/fs/cgroup
tmpfs          tmpfs     994M  508K  993M   1% /tmp
tmpfs          tmpfs     199M   52K  199M   1% /run/user/999
/dev/sda1      fuseblk   450M  389M   62M  87% /mnt/boot-sav/sda1
/dev/sda2      vfat       95M   70M   26M  74% /mnt/boot-sav/sda2
/dev/sda4      fuseblk    24G   17G  7.3G  70% /mnt/boot-sav/sda4
/dev/sda5      ext4       16G  6.7G  8.4G  45% /mnt/boot-sav/sda5
/dev/sdb1      ext4       32G   16G   15G  53% /mnt/boot-sav/sdb1

=================== fdisk -l:
Disk /dev/loop0: 1.97 GiB, 2090962944 bytes, 4083912 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sda: 40.33 GiB, 43294556160 bytes, 84559680 sectors
Disk model: VBOX HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 2530EA09-698D-4322-B791-29F4A072F62E

Device        Start      End  Sectors  Size Type
/dev/sda1      2048   923647   921600  450M Windows recovery environment
/dev/sda2    923648  1126399   202752   99M EFI System
/dev/sda3   1126400  1159167    32768   16M EFI System
/dev/sda4   1159168 50636799 49477632 23.6G Microsoft basic data
/dev/sda5  50636800 84557823 33921024 16.2G Linux filesystem


Disk /dev/sdb: 32 GiB, 34359738368 bytes, 67108864 sectors
Disk model: VBOX HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x52caac94

Device     Boot Start      End  Sectors Size Id Type
/dev/sdb1        2048 67108863 67106816  32G 83 Linux




=================== Suggested repair
The default repair of the Boot-Repair utility would purge (in order to fix packages) and reinstall the grub-efi-amd64-signed of sda5, using the following options:        sda2/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s   fix-windows-boot use-standard-efi-file  restore-efi-backups


=================== Final advice in case of suggested repair
Please do not forget to make your BIOS boot on sda2/efi/.../grub*.efi file!

If your computer reboots directly into Windows, try to change the boot order in your BIOS.
If your BIOS does not allow to change the boot order, change the default boot entry of the Windows bootloader.
For example you can boot into Windows, then type the following command in an admin command prompt:
bcdedit /set {bootmgr} path \EFI\...\grub*.efi


=================== User settings
The settings chosen by the user will not act on the boot.

2) Réparation recommandée de Boot-repair :
Elle est faite depuis la même session live de Ubuntu 20.04 démarrée en mode EFI en relançant Boot-repair.
Boot-info obtenu en fin de réparation : http://paste.ubuntu.com/p/c67wWrkkg8/
Je le colle ci-dessous :

Boot Info Script 71f6c5c + Boot-Repair extra info      [Boot-Info 16mar2020]


============================= Boot Info Summary: ===============================

 => Grub2 (v2.00) is installed in the MBR of /dev/sda and looks at sector 
    76562768 of the same hard drive for core.img. core.img is at this location 
    and looks for (,gpt5)/boot/grub. It also embeds following components:
    
    modules
    ---------------------------------------------------------------------------
    fshelp ext2 part_gpt biosdisk
    ---------------------------------------------------------------------------
 => libparted MBR boot code is installed in the MBR of /dev/sdb.

sda1: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        

sda2: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  Windows 8/2012: FAT32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /EFI/ubuntu/grub.cfg /efi/BOOT/bkpbootx64.efi 
                       /efi/BOOT/bootx64.efi /efi/BOOT/fbx64.efi 
                       /efi/BOOT/grubx64.efi /efi/BOOT/mmx64.efi 
                       /efi/ubuntu/fwupx64.efi /efi/ubuntu/grubx64.efi 
                       /efi/ubuntu/mmx64.efi /efi/ubuntu/shimx64.efi 
                       /efi/ubuntu/grub.cfg /efi/Microsoft/Boot/bootmgfw.efi 
                       /efi/Microsoft/Boot/bootmgr.efi 
                       /efi/Microsoft/Boot/memtest.efi

sda3: __________________________________________________________________________

    File system:       
    Boot sector type:  -
    Boot sector info: 

sda4: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /bootmgr /Windows/System32/winload.exe

sda5: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu Focal Fossa (development branch)
    Boot files:        /boot/grub/grub.cfg /etc/fstab

sdb1: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  
    Boot files:        

============================ Drive/Partition Info: =============================

Drive: sda _____________________________________________________________________
Disk /dev/sda: 40.33 GiB, 43294556160 bytes, 84559680 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1                   1    84,559,679    84,559,679  ee GPT


GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sda1                 2,048       923,647       921,600 Windows Recovery Environment (Windows)
/dev/sda2               923,648     1,126,399       202,752 EFI System partition
/dev/sda3             1,126,400     1,159,167        32,768 EFI System partition
/dev/sda4             1,159,168    50,636,799    49,477,632 Data partition (Windows/Linux)
/dev/sda5            50,636,800    84,557,823    33,921,024 Data partition (Linux)

Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More bits set

Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 32 GiB, 34359738368 bytes, 67108864 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdb1               2,048    67,108,863    67,106,816  83 Linux


"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0                                              squashfs   
/dev/sda1        72E8CBBEE8CB7EBB                       ntfs       Récupération
/dev/sda2        C4D1-8AAE                              vfat       
/dev/sda3                                                          
/dev/sda4        B606ECD606EC989F                       ntfs       
/dev/sda5        6ed2f53a-c172-4eff-9038-491af9c7457b   ext4       
/dev/sdb1        6c14aa5c-a67b-4211-afd2-42ff350e60b0   ext4       images_win10_EFI
/dev/sr0         2020-02-20-07-51-12-00                 iso9660    Ubuntu 20.04 LTS amd64

========================= "ls -l /dev/disk/by-id" output: ======================

total 0
lrwxrwxrwx 1 root root  9 Mar 24 14:46 ata-VBOX_CD-ROM_VB1-1a2b3c4d -> ../../sr0
lrwxrwxrwx 1 root root  9 Mar 24 14:48 ata-VBOX_HARDDISK_VB2db79605-645acf7a -> ../../sda
lrwxrwxrwx 1 root root 10 Mar 24 15:28 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Mar 24 14:48 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Mar 24 14:48 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Mar 24 15:28 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Mar 24 14:48 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part5 -> ../../sda5
lrwxrwxrwx 1 root root  9 Mar 24 14:48 ata-VBOX_HARDDISK_VB8e816ea2-fefc916f -> ../../sdb
lrwxrwxrwx 1 root root 10 Mar 24 14:48 ata-VBOX_HARDDISK_VB8e816ea2-fefc916f-part1 -> ../../sdb1

================================ Mount points: =================================

Device           Mount_Point              Type       Options

/dev/fuse        /run/user/999/doc        fuse       (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/dev/loop0       /rofs                    squashfs   (ro,noatime)
/dev/sr0         /cdrom                   iso9660    (ro,noatime,nojoliet,check=s,map=n,blocksize=2048)


========================== sda2/EFI/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 6ed2f53a-c172-4eff-9038-491af9c7457b root hd0,gpt5 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

========================== sda2/efi/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 6ed2f53a-c172-4eff-9038-491af9c7457b root hd0,gpt5 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

=========================== sda5/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${initrdfail}" = 2 ]; then
   set initrdfail=
elif [ "${initrdfail}" = 1 ]; then
   set next_entry="${prev_entry}"
   set prev_entry=
   save_env prev_entry
   if [ "${next_entry}" ]; then
      set initrdfail=2
   fi
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}
function initrdfail {
    if [ -n "${have_grubenv}" ]; then if [ -n "${partuuid}" ]; then
      if [ -z "${initrdfail}" ]; then
        set initrdfail=1
        if [ -n "${boot_once}" ]; then
          set prev_entry="${default}"
          save_env prev_entry
        fi
      fi
      save_env initrdfail
    fi; fi
}
function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt5'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
else
  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=C
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=10
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=hidden
    set timeout=10
  # Fallback hidden-timeout code in case the timeout_style feature is
  # unavailable.
  elif sleep --interruptible 10 ; then
    set timeout=10
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
	set gfxpayload="${1}"
	if [ "${1}" = "keep" ]; then
		set vt_handoff=vt.handoff=7
	else
		set vt_handoff=
	fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-6ed2f53a-c172-4eff-9038-491af9c7457b' {
	recordfail
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
	insmod part_gpt
	insmod ext2
	set root='hd0,gpt5'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
	else
	  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
	fi
	linux	/boot/vmlinuz-5.4.0-18-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-5.4.0-18-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-6ed2f53a-c172-4eff-9038-491af9c7457b' {
	menuentry 'Ubuntu, with Linux 5.4.0-18-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-18-generic-advanced-6ed2f53a-c172-4eff-9038-491af9c7457b' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
		else
		  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
		fi
		echo	'Loading Linux 5.4.0-18-generic ...'
		linux	/boot/vmlinuz-5.4.0-18-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-18-generic
	}
	menuentry 'Ubuntu, with Linux 5.4.0-18-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-18-generic-recovery-6ed2f53a-c172-4eff-9038-491af9c7457b' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
		else
		  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
		fi
		echo	'Loading Linux 5.4.0-18-generic ...'
		linux	/boot/vmlinuz-5.4.0-18-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-18-generic
	}
	menuentry 'Ubuntu, with Linux 5.4.0-14-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-14-generic-advanced-6ed2f53a-c172-4eff-9038-491af9c7457b' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
		else
		  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
		fi
		echo	'Loading Linux 5.4.0-14-generic ...'
		linux	/boot/vmlinuz-5.4.0-14-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-14-generic
	}
	menuentry 'Ubuntu, with Linux 5.4.0-14-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-14-generic-recovery-6ed2f53a-c172-4eff-9038-491af9c7457b' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
		else
		  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
		fi
		echo	'Loading Linux 5.4.0-14-generic ...'
		linux	/boot/vmlinuz-5.4.0-14-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-14-generic
	}
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/10_linux_zfs ###
### END /etc/grub.d/10_linux_zfs ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/25_custom ###

menuentry "Windows UEFI bootmgfw.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
}

menuentry "EFI/BOOT/bkpbootx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/bkpbootx64.efi
}

menuentry "EFI/BOOT/fbx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/fbx64.efi
}

menuentry "EFI/BOOT/mmx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/mmx64.efi
}

menuentry "EFI/ubuntu/fwupx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/ubuntu/fwupx64.efi
}

menuentry "EFI/ubuntu/mmx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/ubuntu/mmx64.efi
}
### END /etc/grub.d/25_custom ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/sda2)' --class windows --class os $menuentry_id_option 'osprober-efi-C4D1-8AAE' {
	insmod part_gpt
	insmod fat
	set root='hd0,gpt2'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  C4D1-8AAE
	else
	  search --no-floppy --fs-uuid --set=root C4D1-8AAE
	fi
	chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'UEFI Firmware Settings' $menuentry_id_option 'uefi-firmware' {
	fwsetup
}
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------

=============================== sda5/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda5 during installation
UUID=6ed2f53a-c172-4eff-9038-491af9c7457b /               ext4    errors=remount-ro 0       1
/swapfile                                 none            swap    sw              0       0
UUID=C4D1-8AAE	/boot/efi	vfat	defaults	0	1
--------------------------------------------------------------------------------

=================== sda5: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

  28.284156799 = 30.369882112   boot/grub/grub.cfg                             1
  30.789169312 = 33.059618816   boot/vmlinuz                                   2
  27.387691498 = 29.407309824   boot/vmlinuz-5.4.0-14-generic                  2
  30.789169312 = 33.059618816   boot/vmlinuz-5.4.0-18-generic                  2
  27.387691498 = 29.407309824   boot/vmlinuz.old                               2
  31.236404419 = 33.539833856   boot/initrd.img                                1
  31.188690186 = 33.488601088   boot/initrd.img-5.4.0-14-generic               3
  31.236404419 = 33.539833856   boot/initrd.img-5.4.0-18-generic               1
  31.188690186 = 33.488601088   boot/initrd.img.old                            3

=============================== StdErr Messages: ===============================

File descriptor 9 (/proc/19030/mountinfo) leaked on lvs invocation. Parent PID 42191: bash

ADDITIONAL INFORMATION :
=================== log of boot-repair 20200324_1448 ===================
boot-repair version : 4ppa75
boot-sav version : 4ppa75
boot-sav-extra version : 4ppa75
glade2script version : 3.2.4~ppa6
Warning: Unable to open /dev/sr0 read-write (Read-only file system).  /dev/sr0 has been opened read-only.
boot-repair is executed in live-session (Ubuntu Focal Fossa (development branch), focal, Ubuntu, x86_64)
CPU op-mode(s):                  32-bit, 64-bit
Address sizes:                   48 bits physical, 48 bits virtual
BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed quiet splash ---

=================== os-prober:
/dev/sda2@/efi/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi
/dev/sda5:Ubuntu Focal Fossa (development branch) (20.04):Ubuntu:linux

=================== blkid:
/dev/sda1: LABEL="RM-CM-)cupM-CM-)ration" UUID="72E8CBBEE8CB7EBB" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="07380664-6dd4-4925-aeac-a435b34ad9f5"
/dev/sda2: UUID="C4D1-8AAE" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="1ab7abb3-31e4-4289-9a3a-587ac6546242"
/dev/sda4: UUID="B606ECD606EC989F" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="63728c63-f8c6-4f3b-8882-3688c4f80734"
/dev/sda5: UUID="6ed2f53a-c172-4eff-9038-491af9c7457b" TYPE="ext4" PARTUUID="54392d5d-1996-4c62-8842-d91f4a33b602"
/dev/sdb1: LABEL="images_win10_EFI" UUID="6c14aa5c-a67b-4211-afd2-42ff350e60b0" TYPE="ext4" PARTUUID="52caac94-01"
/dev/sr0: UUID="2020-02-20-07-51-12-00" LABEL="Ubuntu 20.04 LTS amd64" TYPE="iso9660" PTUUID="72b2b8e0" PTTYPE="dos"
/dev/loop0: TYPE="squashfs"
/dev/sda3: PARTLABEL="Microsoft reserved partition" PARTUUID="c21c3b27-c875-4428-a0d8-0c431338197b"


1 disks with OS, 2 OS : 1 Linux, 0 MacOS, 1 Windows, 0 unknown type OS.

Windows not detected by os-prober on sda4.
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda2/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/bkpbootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/grubx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/mmx64.efi
Presence of bkp file detected: /mnt/boot-sav/sda2/EFI/BOOT/bkpbootx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 24 13:33 grub.d
total 128
-rwxr-xr-x 1 root root 10627 Feb  6 17:37 00_header
-rwxr-xr-x 1 root root  6258 Feb  6 17:20 05_debian_theme
-rwxr-xr-x 1 root root 17123 Feb  6 17:37 10_linux
-rwxr-xr-x 1 root root 38596 Mar 11 16:46 10_linux_zfs
-rwxr-xr-x 1 root root 12894 Feb  6 17:37 20_linux_xen
-rwxr-xr-x 1 root root  1992 Feb 13 23:09 20_memtest86+
-rwxr-xr-x 1 root root 12059 Feb  6 17:37 30_os-prober
-rwxr-xr-x 1 root root  1424 Mar 11 16:46 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Feb  6 17:37 40_custom
-rwxr-xr-x 1 root root   216 Feb  6 17:37 41_custom
-rw-r--r-- 1 root root   483 Feb  6 17:37 README




=================== sda5/etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"



ls /sys/firmware/efi/vars : new_var,del_var,boot-args-7c436110-ab2a-4bbb-a880-fe41995c9f82,Test1-e660597e-b94d-4209-9c80-1805b5d19b69,Test0-e660597e-b94d-4209-9c80-1805b5d19b69,RTC-378d7b65-8da9-4773-b6e4-a47826a833e1,PlatformLangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c,PlatformLang-8be4df61-93ca-11d2-aa0d-00e098032b8c,OsIndicationsSupported-8be4df61-93ca-11d2-aa0d-00e098032b8c,MemoryTypeInformation-4c19049f-4137-4dd3-9c10-8b97a83ffdfa,MTC-eb704011-1402-11d3-8e77-00a0c969723b,LangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c,Lang-8be4df61-93ca-11d2-aa0d-00e098032b8c,FirmwareFeaturesMask-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,FirmwareFeatures-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,ConOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConOut-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConInDev-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConIn-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootOptionSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootCurrent-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0003-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0002-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0001-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0000-8be4df61-93ca-11d2-aa0d-00e098032b8c,BackgroundClear-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,
Please report this message to boot.repair@gmail.com

=================== efibootmgr -v
BootCurrent: 0000
BootOrder: 0000,0001,0002,0003
Boot0000* EFI DVD/CDROM	PciRoot(0x0)/Pci(0xd,0x0)/Sata(1,0,0)
Boot0001* EFI Hard Drive	PciRoot(0x0)/Pci(0xd,0x0)/Sata(0,0,0)
Boot0002* EFI Hard Drive 1	PciRoot(0x0)/Pci(0xd,0x0)/Sata(2,0,0)
Boot0003* EFI Internal Shell	MemoryMapped(11,0x2100000,0x28fffff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)

=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot maybe enabled. (maybe sec-boot, Please report this message to boot.repair@gmail.com)


=================== PARTITIONS & DISKS:
sda1	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	recovery-or-hidden,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda1.
sda2	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	is-correct-EFI,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda2.
sda4	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	haswinload,	no-recov-nor-hid,	bootmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda4.
sda5	: sda,	not-sepboot,	grubenv-ok	grub2,	grub-pc ,	update-grub,	64,	with-boot,	is-os,	not--efi--part,	fstab-without-boot,	fstab-without-efi,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	apt-get,	grub-install,	with--usr,	fstab-without-usr,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda5.
sdb1	: sdb,	maybesepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sdb1.

sda	: GPT,	no-BIOS_boot,	has-correctEFI, 	not-usb,	not-mmc, has-os,	2048 sectors * 512 bytes
sdb	: not-GPT,	BIOSboot-not-needed,	has-no-EFIpart, 	not-usb,	not-mmc, no-os,	2048 sectors * 512 bytes


=================== parted -lm:

BYT;
/dev/sda:43.3GB:scsi:512:512:gpt:ATA VBOX HARDDISK:;
1:1049kB:473MB:472MB:ntfs:Basic data partition:diag;
2:473MB:577MB:104MB:fat32:EFI system partition:boot, esp;
3:577MB:593MB:16.8MB::Microsoft reserved partition:boot, esp;
4:593MB:25.9GB:25.3GB:ntfs:Basic data partition:msftdata;
5:25.9GB:43.3GB:17.4GB:ext4::;

BYT;
/dev/sdb:34.4GB:scsi:512:512:msdos:ATA VBOX HARDDISK:;
1:1049kB:34.4GB:34.4GB:ext4::;

BYT;
/dev/sr0:2743MB:scsi:2048:2048:mac:VBOX CD-ROM:;
1:2048B:6143B:4096B::Apple:;
2:2299MB:2303MB:4063kB::EFI:;

=================== lsblk:
KNAME TYPE FSTYPE    SIZE LABEL
loop0 loop squashfs    2G
sda   disk          40.3G
sda1  part ntfs      450M Récupération
sda2  part vfat       99M
sda3  part            16M
sda4  part ntfs     23.6G
sda5  part ext4     16.2G
sdb   disk            32G
sdb1  part ext4       32G images_win10_EFI
sr0   rom  iso9660   2.6G Ubuntu 20.04 LTS amd64

KNAME ROTA RO RM STATE   MOUNTPOINT
loop0    1  1  0         /rofs
sda      1  0  0 running
sda1     1  0  0         /mnt/boot-sav/sda1
sda2     1  0  0         /mnt/boot-sav/sda2
sda3     1  0  0
sda4     1  0  0         /mnt/boot-sav/sda4
sda5     1  0  0         /mnt/boot-sav/sda5
sdb      1  0  0 running
sdb1     1  0  0         /mnt/boot-sav/sdb1
sr0      1  0  1 running /cdrom


=================== mount:
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,noexec,relatime,size=969560k,nr_inodes=242390,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,noexec,relatime,size=203424k,mode=755)
/dev/sr0 on /cdrom type iso9660 (ro,noatime,nojoliet,check=s,map=n,blocksize=2048)
/dev/loop0 on /rofs type squashfs (ro,noatime)
/cow on / type overlay (rw,relatime,lowerdir=/filesystem.squashfs,upperdir=/cow/upper,workdir=/cow/work)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup2 on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
none on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=27,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=16550)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,relatime)
tmpfs on /run/user/999 type tmpfs (rw,nosuid,nodev,relatime,size=203420k,mode=700,uid=999,gid=999)
gvfsd-fuse on /run/user/999/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/dev/fuse on /run/user/999/doc type fuse (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/dev/sda1 on /mnt/boot-sav/sda1 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda2 on /mnt/boot-sav/sda2 type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sda4 on /mnt/boot-sav/sda4 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda5 on /mnt/boot-sav/sda5 type ext4 (rw,relatime)
/dev/sdb1 on /mnt/boot-sav/sdb1 type ext4 (rw,relatime)


=================== ls:
/sys/block/sda (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro sda1 sda2 sda3 sda4 sda5 size slaves stat subsystem trace uevent
/sys/block/sdb (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro sdb1 size slaves stat subsystem trace uevent
/sys/block/sr0 (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro size slaves stat subsystem trace uevent
/dev (filtered):  autofs block bsg btrfs-control bus cdrom char console core cpu_dma_latency cuse disk dri dvd ecryptfs fb0 fd full fuse hidraw0 hpet hugepages hwrng i2c-0 initctl input kmsg lightnvm log mapper mcelog mem mqueue net null port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sda2 sda3 sda4 sda5 sdb sdb1 sg0 sg1 sg2 shm snapshot snd sr0 stderr stdin stdout udmabuf uhid uinput urandom userio vboxguest vboxuser vfio vga_arbiter vhci vhost-net vhost-vsock zero zfs
ls /dev/mapper:  control

=================== hexdump -n512 -C /dev/sda1
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff 0f 0e 00 00 00 00 00  |................|
00000030  00 96 00 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  bb 7e cb e8 be cb e8 72  |.........~.....r|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda2
00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 02 0e 1a  |.X.MSDOS5.0.....|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 18 0e 00  |........?.......|
00000020  00 18 03 00 f9 02 00 00  00 00 00 00 02 00 00 00  |................|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  80 01 29 ae 8a d1 c4 4e  4f 20 4e 41 4d 45 20 20  |..)....NO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 33 c9 8e d1 bc f4  |  FAT32   3.....|
00000060  7b 8e c1 8e d9 bd 00 7c  88 56 40 88 4e 02 8a 56  |{......|.V@.N..V|
00000070  40 b4 41 bb aa 55 cd 13  72 10 81 fb 55 aa 75 0a  |@.A..U..r...U.u.|
00000080  f6 c1 01 74 05 fe 46 02  eb 2d 8a 56 40 b4 08 cd  |...t..F..-.V@...|
00000090  13 73 05 b9 ff ff 8a f1  66 0f b6 c6 40 66 0f b6  |.s......f...@f..|
000000a0  d1 80 e2 3f f7 e2 86 cd  c0 ed 06 41 66 0f b7 c9  |...?.......Af...|
000000b0  66 f7 e1 66 89 46 f8 83  7e 16 00 75 39 83 7e 2a  |f..f.F..~..u9.~*|
000000c0  00 77 33 66 8b 46 1c 66  83 c0 0c bb 00 80 b9 01  |.w3f.F.f........|
000000d0  00 e8 2c 00 e9 a8 03 a1  f8 7d 80 c4 7c 8b f0 ac  |..,......}..|...|
000000e0  84 c0 74 17 3c ff 74 09  b4 0e bb 07 00 cd 10 eb  |..t.<.t.........|
000000f0  ee a1 fa 7d eb e4 a1 7d  80 eb df 98 cd 16 cd 19  |...}...}........|
00000100  66 60 80 7e 02 00 0f 84  20 00 66 6a 00 66 50 06  |f`.~.... .fj.fP.|
00000110  53 66 68 10 00 01 00 b4  42 8a 56 40 8b f4 cd 13  |Sfh.....B.V@....|
00000120  66 58 66 58 66 58 66 58  eb 33 66 3b 46 f8 72 03  |fXfXfXfX.3f;F.r.|
00000130  f9 eb 2a 66 33 d2 66 0f  b7 4e 18 66 f7 f1 fe c2  |..*f3.f..N.f....|
00000140  8a ca 66 8b d0 66 c1 ea  10 f7 76 1a 86 d6 8a 56  |..f..f....v....V|
00000150  40 8a e8 c0 e4 06 0a cc  b8 01 02 cd 13 66 61 0f  |@............fa.|
00000160  82 74 ff 81 c3 00 02 66  40 49 75 94 c3 42 4f 4f  |.t.....f@Iu..BOO|
00000170  54 4d 47 52 20 20 20 20  00 00 00 00 00 00 00 00  |TMGR    ........|
00000180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001a0  00 00 00 00 00 00 00 00  00 00 00 00 0d 0a 45 72  |..............Er|
000001b0  72 2e 20 64 69 73 71 75  65 ff 0d 0a 50 72 65 73  |r. disque...Pres|
000001c0  73 65 7a 20 75 6e 65 20  74 6f 75 63 68 65 20 70  |sez une touche p|
000001d0  6f 75 72 20 72 65 64 82  6d 61 72 72 65 72 0d 0a  |our red.marrer..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 00 00  ac 01 ba 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda4
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 b0 11 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff f7 f2 02 00 00 00 00  |................|
00000030  00 00 0c 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  9f 98 ec 06 d6 ec 06 b6  |................|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== df -Th:

Filesystem     Type      Size  Used Avail Use% Mounted on
udev           devtmpfs  947M     0  947M   0% /dev
tmpfs          tmpfs     199M  1.4M  198M   1% /run
/dev/sr0       iso9660   2.6G  2.6G     0 100% /cdrom
/dev/loop0     squashfs  2.0G  2.0G     0 100% /rofs
/cow           overlay   994M  328M  666M  33% /
tmpfs          tmpfs     994M   28M  966M   3% /dev/shm
tmpfs          tmpfs     5.0M  4.0K  5.0M   1% /run/lock
tmpfs          tmpfs     994M     0  994M   0% /sys/fs/cgroup
tmpfs          tmpfs     994M  820K  993M   1% /tmp
tmpfs          tmpfs     199M   52K  199M   1% /run/user/999
/dev/sda1      fuseblk   450M  389M   62M  87% /mnt/boot-sav/sda1
/dev/sda2      vfat       95M   70M   26M  74% /mnt/boot-sav/sda2
/dev/sda4      fuseblk    24G   17G  7.3G  70% /mnt/boot-sav/sda4
/dev/sda5      ext4       16G  6.7G  8.4G  45% /mnt/boot-sav/sda5
/dev/sdb1      ext4       32G   16G   15G  53% /mnt/boot-sav/sdb1

=================== fdisk -l:
Disk /dev/loop0: 1.97 GiB, 2090962944 bytes, 4083912 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sda: 40.33 GiB, 43294556160 bytes, 84559680 sectors
Disk model: VBOX HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 2530EA09-698D-4322-B791-29F4A072F62E

Device        Start      End  Sectors  Size Type
/dev/sda1      2048   923647   921600  450M Windows recovery environment
/dev/sda2    923648  1126399   202752   99M EFI System
/dev/sda3   1126400  1159167    32768   16M EFI System
/dev/sda4   1159168 50636799 49477632 23.6G Microsoft basic data
/dev/sda5  50636800 84557823 33921024 16.2G Linux filesystem


Disk /dev/sdb: 32 GiB, 34359738368 bytes, 67108864 sectors
Disk model: VBOX HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x52caac94

Device     Boot Start      End  Sectors Size Id Type
/dev/sdb1        2048 67108863 67106816  32G 83 Linux



=================== Recommended repair
The default repair of the Boot-Repair utility will purge (in order to fix packages) and reinstall the grub-efi-amd64-signed of sda5, using the following options:        sda2/boot/efi,
Additional repair will be performed: unhide-bootmenu-10s   fix-windows-boot use-standard-efi-file  restore-efi-backups


/boot/efi added in sda5/fstab
rm /mnt/boot-sav/sda2/efi/Boot/bootx64.efi
Quantity of real Windows: 1
Created sda5/boot/efi
Mount sda2 on /mnt/boot-sav/sda5/boot/efi
efi files in sda2/efi: /Microsoft/Boot/memtest.efi /Microsoft/Boot/bootmgr.efi /Microsoft/Boot/bootmgfw.efi /ubuntu/shimx64.efi /ubuntu/mmx64.efi /ubuntu/grubx64.efi /ubuntu/fwupx64.efi /BOOT/mmx64.efi /BOOT/grubx64.efi /BOOT/fbx64.efi /BOOT/bootx64.efi
chroot /mnt/boot-sav/sda5 apt-get -y update
The AppStream system cache was updated, but some components were ignored. Refer to the verbose log for more information.
Purge the GRUB of sda5
grub-efi-amd64-signed available


The following package was automatically installed and is no longer required:
linux-modules-5.4.0-1002-oem
Use 'sudo apt autoremove' to remove it.
The following additional packages will be installed:
efibootmgr grub-efi-amd64-bin
The following NEW packages will be installed:
efibootmgr grub-efi-amd64-bin grub-efi-amd64-signed
0 upgraded, 3 newly installed, 0 to remove and 639 not upgraded.
DEBCHECK debOK, grub-efi-amd64-signed
DEBCHECK debOK
shim-signed available
Please type: sudo chroot "/mnt/boot-sav/sda5" dpkg --configure -ansudo chroot "/mnt/boot-sav/sda5" dpkg --configure -ansudo chroot "/mnt/boot-sav/sda5" apt-get install -fynsudo chroot "/mnt/boot-sav/sda5" apt-get purge -y grub*-common shim-signed
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/grubx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/mmx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 24 15:15 grub.d
total 4
-rwxr-xr-x 1 root root 1992 Feb 13 23:09 20_memtest86+


/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
shim-signed available
linux-headers-generic available
linux-signed-generic NOT available (apt-cache policy  problem)
Then type: sudo chroot "/mnt/boot-sav/sda5" apt-get install -y grub-efi-amd64-signed shim-signed linux-headers-generic
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/grubx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/mmx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 24 15:20 grub.d
drwxr-xr-x  2 root root    4096 Mar 24 15:15 grub.d.bak
total 124
-rwxr-xr-x 1 root root 10627 Mar 11 16:46 00_header
-rwxr-xr-x 1 root root  6258 Mar 11 16:46 05_debian_theme
-rwxr-xr-x 1 root root 17123 Mar 11 16:46 10_linux
-rwxr-xr-x 1 root root 38596 Mar 11 16:46 10_linux_zfs
-rwxr-xr-x 1 root root 12894 Mar 11 16:46 20_linux_xen
-rwxr-xr-x 1 root root 12059 Mar 11 16:46 30_os-prober
-rwxr-xr-x 1 root root  1424 Mar 11 16:46 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Mar 11 16:46 40_custom
-rwxr-xr-x 1 root root   216 Mar 11 16:46 41_custom
-rw-r--r-- 1 root root   483 Mar 11 16:46 README




=================== sda5/etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"



/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
Unhide GRUB boot menu in sda5/etc/default/grub
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/grubx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/mmx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 24 15:20 grub.d
drwxr-xr-x  2 root root    4096 Mar 24 15:15 grub.d.bak
total 124
-rwxr-xr-x 1 root root 10627 Mar 11 16:46 00_header
-rwxr-xr-x 1 root root  6258 Mar 11 16:46 05_debian_theme
-rwxr-xr-x 1 root root 17123 Mar 11 16:46 10_linux
-rwxr-xr-x 1 root root 38596 Mar 11 16:46 10_linux_zfs
-rwxr-xr-x 1 root root 12894 Mar 11 16:46 20_linux_xen
-rwxr-xr-x 1 root root 12059 Mar 11 16:46 30_os-prober
-rwxr-xr-x 1 root root  1424 Mar 11 16:46 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Mar 11 16:46 40_custom
-rwxr-xr-x 1 root root   216 Mar 11 16:46 41_custom
-rw-r--r-- 1 root root   483 Mar 11 16:46 README




=================== sda5/etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"



/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
lspci: Unable to load libkmod resources: error -12

*******lspci -nnk | grep -iA3 vga
00:02.0 VGA compatible controller [0300]: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter [80ee:beef]
Kernel driver in use: vboxvideo
00:03.0 Ethernet controller [0200]: Intel Corporation 82540EM Gigabit Ethernet Controller [8086:100e] (rev 02)
Subsystem: Intel Corporation PRO/1000 MT Desktop Adapter [8086:001e]
*******

grub-install --version
grub-install (GRUB) 2.04-1ubuntu22,grub-install (GRUB) 2.

chroot /mnt/boot-sav/sda5 efibootmgr -v
BootCurrent: 0000
BootOrder: 0004,0000,0001,0002,0003
Boot0000* EFI DVD/CDROM	PciRoot(0x0)/Pci(0xd,0x0)/Sata(1,0,0)
Boot0001* EFI Hard Drive	PciRoot(0x0)/Pci(0xd,0x0)/Sata(0,0,0)
Boot0002* EFI Hard Drive 1	PciRoot(0x0)/Pci(0xd,0x0)/Sata(2,0,0)
Boot0003* EFI Internal Shell	MemoryMapped(11,0x2100000,0x28fffff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)
Boot0004* ubuntu	HD(2,GPT,1ab7abb3-31e4-4289-9a3a-587ac6546242,0xe1800,0x31800)/File(EFIubuntushimx64.efi)

chroot /mnt/boot-sav/sda5 uname -r
Kernel: 5.4.0-14-generic

Reinstall the grub-efi-amd64-signed shim-signed linux-headers-generic of sda5
Installing for x86_64-efi platform.
Installation finished. No error reported.
grub-install --efi-directory=/boot/efi --target=x86_64-efi --uefi-secure-boot : exit code of grub-install :0
efi files in sda2/efi: /Microsoft/Boot/memtest.efi /Microsoft/Boot/bootmgr.efi /Microsoft/Boot/bootmgfw.efi /ubuntu/shimx64.efi /ubuntu/mmx64.efi /ubuntu/grubx64.efi /ubuntu/fwupx64.efi /BOOT/mmx64.efi /BOOT/grubx64.efi /BOOT/fbx64.efi /BOOT/bootx64.efi
df /dev/sda2
mv /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bkpbootx64.efi
cp /mnt/boot-sav/sda5/boot/efi/EFI/ubuntu/shimx64.efi /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
efi files in sda2/efi: /Microsoft/Boot/memtest.efi /Microsoft/Boot/bootmgr.efi /Microsoft/Boot/bootmgfw.efi /ubuntu/shimx64.efi /ubuntu/mmx64.efi /ubuntu/grubx64.efi /ubuntu/fwupx64.efi /BOOT/mmx64.efi /BOOT/grubx64.efi /BOOT/fbx64.efi /BOOT/bootx64.efi /BOOT/bkpbootx64.efi
Add /mnt/boot-sav/sda5/boot/efi efi entries in /mnt/boot-sav/sda5/etc/grub.d/25_custom
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/BOOT/bkpbootx64.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/BOOT/fbx64.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/BOOT/mmx64.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/ubuntu/fwupx64.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/ubuntu/mmx64.efi
sda2/bootmgfw.efi already added
Installing for x86_64-efi platform.
Installation finished. No error reported.
grub-install --efi-directory=/boot/efi --target=x86_64-efi --uefi-secure-boot : exit code of grub-install :0

chroot /mnt/boot-sav/sda5 efibootmgr -v
BootCurrent: 0000
BootOrder: 0004,0000,0001,0002,0003
Boot0000* EFI DVD/CDROM	PciRoot(0x0)/Pci(0xd,0x0)/Sata(1,0,0)
Boot0001* EFI Hard Drive	PciRoot(0x0)/Pci(0xd,0x0)/Sata(0,0,0)
Boot0002* EFI Hard Drive 1	PciRoot(0x0)/Pci(0xd,0x0)/Sata(2,0,0)
Boot0003* EFI Internal Shell	MemoryMapped(11,0x2100000,0x28fffff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)
Boot0004* ubuntu	HD(2,GPT,1ab7abb3-31e4-4289-9a3a-587ac6546242,0xe1800,0x31800)/File(EFIubuntushimx64.efi)

chroot /mnt/boot-sav/sda5 update-grub
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.4.0-18-generic
Found initrd image: /boot/initrd.img-5.4.0-18-generic
Found linux image: /boot/vmlinuz-5.4.0-14-generic
Found initrd image: /boot/initrd.img-5.4.0-14-generic
Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi
Adding boot menu entry for UEFI Firmware Settings
Unhide GRUB boot menu in sda5/boot/grub/grub.cfg

Boot successfully repaired.

You can now reboot your computer.
Please do not forget to make your BIOS boot on sda2/EFI/ubuntu/shimx64.efi file!

If your computer reboots directly into Windows, try to change the boot order in your BIOS.
If your BIOS does not allow to change the boot order, change the default boot entry of the Windows bootloader.
For example you can boot into Windows, then type the following command in an admin command prompt:
bcdedit /set {bootmgr} path \EFI\ubuntu\shimx64.efi

3) Boot-info depuis une session du Ubuntu réparé : http://paste.ubuntu.com/p/GnpK6YsgJy/
Je le colle ci-dessous :

Boot Info Script 71f6c5c + Boot-Repair extra info      [Boot-Info 16mar2020]


============================= Boot Info Summary: ===============================

 => Grub2 (v2.00) is installed in the MBR of /dev/sda and looks at sector 
    76562768 of the same hard drive for core.img. core.img is at this location 
    and looks for (,gpt5)/boot/grub. It also embeds following components:
    
    modules
    ---------------------------------------------------------------------------
    fshelp ext2 part_gpt biosdisk
    ---------------------------------------------------------------------------
 => libparted MBR boot code is installed in the MBR of /dev/sdb.

sda1: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        

sda2: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  Windows 8/2012: FAT32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /EFI/ubuntu/grub.cfg /efi/BOOT/bkpbootx64.efi 
                       /efi/BOOT/bootx64.efi /efi/BOOT/fbx64.efi 
                       /efi/BOOT/grubx64.efi /efi/BOOT/mmx64.efi 
                       /efi/ubuntu/fwupx64.efi /efi/ubuntu/grubx64.efi 
                       /efi/ubuntu/mmx64.efi /efi/ubuntu/shimx64.efi 
                       /efi/ubuntu/grub.cfg /efi/Microsoft/Boot/bootmgfw.efi 
                       /efi/Microsoft/Boot/bootmgr.efi 
                       /efi/Microsoft/Boot/memtest.efi

sda3: __________________________________________________________________________

    File system:       
    Boot sector type:  -
    Boot sector info: 

sda4: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /bootmgr /Windows/System32/winload.exe

sda5: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu Focal Fossa (development branch)
    Boot files:        /boot/grub/grub.cfg /etc/fstab

sdb1: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  
    Boot files:        

============================ Drive/Partition Info: =============================

Drive: sda _____________________________________________________________________
Disk /dev/sda: 40.33 GiB, 43294556160 bytes, 84559680 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1                   1    84,559,679    84,559,679  ee GPT


GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sda1                 2,048       923,647       921,600 Windows Recovery Environment (Windows)
/dev/sda2               923,648     1,126,399       202,752 EFI System partition
/dev/sda3             1,126,400     1,159,167        32,768 EFI System partition
/dev/sda4             1,159,168    50,636,799    49,477,632 Data partition (Windows/Linux)
/dev/sda5            50,636,800    84,557,823    33,921,024 Data partition (Linux)

Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More bits set

Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 32 GiB, 34359738368 bytes, 67108864 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdb1               2,048    67,108,863    67,106,816  83 Linux


"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/sda1        72E8CBBEE8CB7EBB                       ntfs       Récupération
/dev/sda2        C4D1-8AAE                              vfat       
/dev/sda3                                                          
/dev/sda4        B606ECD606EC989F                       ntfs       
/dev/sda5        6ed2f53a-c172-4eff-9038-491af9c7457b   ext4       
/dev/sdb1        6c14aa5c-a67b-4211-afd2-42ff350e60b0   ext4       images_win10_EFI

========================= "ls -l /dev/disk/by-id" output: ======================

total 0
lrwxrwxrwx 1 root root  9 Mar 24 16:32 ata-VBOX_CD-ROM_VB1-1a2b3c4d -> ../../sr0
lrwxrwxrwx 1 root root  9 Mar 24 16:49 ata-VBOX_HARDDISK_VB2db79605-645acf7a -> ../../sda
lrwxrwxrwx 1 root root 10 Mar 24 16:57 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Mar 24 16:49 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Mar 24 16:49 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Mar 24 16:57 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Mar 24 16:49 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part5 -> ../../sda5
lrwxrwxrwx 1 root root  9 Mar 24 16:49 ata-VBOX_HARDDISK_VB8e816ea2-fefc916f -> ../../sdb
lrwxrwxrwx 1 root root 10 Mar 24 16:49 ata-VBOX_HARDDISK_VB8e816ea2-fefc916f-part1 -> ../../sdb1

================================ Mount points: =================================

Device           Mount_Point              Type       Options

/dev/fuse        /run/user/1000/doc       fuse       (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
/dev/sda2        /boot/efi                vfat       (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sda5        /                        ext4       (rw,relatime,errors=remount-ro)


========================== sda2/EFI/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 6ed2f53a-c172-4eff-9038-491af9c7457b root hd0,gpt5 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

========================== sda2/efi/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 6ed2f53a-c172-4eff-9038-491af9c7457b root hd0,gpt5 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

=========================== sda5/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${initrdfail}" = 2 ]; then
   set initrdfail=
elif [ "${initrdfail}" = 1 ]; then
   set next_entry="${prev_entry}"
   set prev_entry=
   save_env prev_entry
   if [ "${next_entry}" ]; then
      set initrdfail=2
   fi
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}
function initrdfail {
    if [ -n "${have_grubenv}" ]; then if [ -n "${partuuid}" ]; then
      if [ -z "${initrdfail}" ]; then
        set initrdfail=1
        if [ -n "${boot_once}" ]; then
          set prev_entry="${default}"
          save_env prev_entry
        fi
      fi
      save_env initrdfail
    fi; fi
}
function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt5'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
else
  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=C
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=10
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=hidden
    set timeout=10
  # Fallback hidden-timeout code in case the timeout_style feature is
  # unavailable.
  elif sleep --interruptible 10 ; then
    set timeout=10
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
	set gfxpayload="${1}"
	if [ "${1}" = "keep" ]; then
		set vt_handoff=vt.handoff=7
	else
		set vt_handoff=
	fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-6ed2f53a-c172-4eff-9038-491af9c7457b' {
	recordfail
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
	insmod part_gpt
	insmod ext2
	set root='hd0,gpt5'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
	else
	  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
	fi
	linux	/boot/vmlinuz-5.4.0-18-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-5.4.0-18-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-6ed2f53a-c172-4eff-9038-491af9c7457b' {
	menuentry 'Ubuntu, with Linux 5.4.0-18-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-18-generic-advanced-6ed2f53a-c172-4eff-9038-491af9c7457b' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
		else
		  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
		fi
		echo	'Loading Linux 5.4.0-18-generic ...'
		linux	/boot/vmlinuz-5.4.0-18-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-18-generic
	}
	menuentry 'Ubuntu, with Linux 5.4.0-18-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-18-generic-recovery-6ed2f53a-c172-4eff-9038-491af9c7457b' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
		else
		  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
		fi
		echo	'Loading Linux 5.4.0-18-generic ...'
		linux	/boot/vmlinuz-5.4.0-18-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-18-generic
	}
	menuentry 'Ubuntu, with Linux 5.4.0-14-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-14-generic-advanced-6ed2f53a-c172-4eff-9038-491af9c7457b' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
		else
		  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
		fi
		echo	'Loading Linux 5.4.0-14-generic ...'
		linux	/boot/vmlinuz-5.4.0-14-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-14-generic
	}
	menuentry 'Ubuntu, with Linux 5.4.0-14-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-14-generic-recovery-6ed2f53a-c172-4eff-9038-491af9c7457b' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  6ed2f53a-c172-4eff-9038-491af9c7457b
		else
		  search --no-floppy --fs-uuid --set=root 6ed2f53a-c172-4eff-9038-491af9c7457b
		fi
		echo	'Loading Linux 5.4.0-14-generic ...'
		linux	/boot/vmlinuz-5.4.0-14-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-14-generic
	}
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/10_linux_zfs ###
### END /etc/grub.d/10_linux_zfs ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/25_custom ###

menuentry "Windows UEFI bootmgfw.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
}

menuentry "EFI/BOOT/bkpbootx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/bkpbootx64.efi
}

menuentry "EFI/BOOT/fbx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/fbx64.efi
}

menuentry "EFI/BOOT/mmx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/mmx64.efi
}

menuentry "EFI/ubuntu/fwupx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/ubuntu/fwupx64.efi
}

menuentry "EFI/ubuntu/mmx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/ubuntu/mmx64.efi
}
### END /etc/grub.d/25_custom ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/sda2)' --class windows --class os $menuentry_id_option 'osprober-efi-C4D1-8AAE' {
	insmod part_gpt
	insmod fat
	set root='hd0,gpt2'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  C4D1-8AAE
	else
	  search --no-floppy --fs-uuid --set=root C4D1-8AAE
	fi
	chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'UEFI Firmware Settings' $menuentry_id_option 'uefi-firmware' {
	fwsetup
}
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------

=============================== sda5/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda5 during installation
UUID=6ed2f53a-c172-4eff-9038-491af9c7457b /               ext4    errors=remount-ro 0       1
/swapfile                                 none            swap    sw              0       0
UUID=C4D1-8AAE	/boot/efi	vfat	defaults	0	1
--------------------------------------------------------------------------------

=================== sda5: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

  28.284156799 = 30.369882112   boot/grub/grub.cfg                             1
  30.789169312 = 33.059618816   boot/vmlinuz                                   2
  27.387691498 = 29.407309824   boot/vmlinuz-5.4.0-14-generic                  2
  30.789169312 = 33.059618816   boot/vmlinuz-5.4.0-18-generic                  2
  27.387691498 = 29.407309824   boot/vmlinuz.old                               2
  31.236404419 = 33.539833856   boot/initrd.img                                1
  31.188690186 = 33.488601088   boot/initrd.img-5.4.0-14-generic               3
  31.236404419 = 33.539833856   boot/initrd.img-5.4.0-18-generic               1
  31.188690186 = 33.488601088   boot/initrd.img.old                            3


ADDITIONAL INFORMATION :
=================== log of boot-info 20200324_1649 ===================
boot-info version : 4ppa75
boot-sav version : 4ppa75
boot-sav-extra version : 4ppa75
glade2script version : 3.2.4~ppa6
boot-info is executed in installed-session (Ubuntu Focal Fossa (development branch), focal, Ubuntu, x86_64)
CPU op-mode(s):                  32-bit, 64-bit
Address sizes:                   48 bits physical, 48 bits virtual
BOOT_IMAGE=/boot/vmlinuz-5.4.0-18-generic root=UUID=6ed2f53a-c172-4eff-9038-491af9c7457b ro quiet splash vt.handoff=7

=================== os-prober:
/dev/sda5:L'OS actuellement utilisé - Ubuntu Focal Fossa (development branch) CurrentSession:linux
/dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi

=================== blkid:
/dev/sda5: UUID="6ed2f53a-c172-4eff-9038-491af9c7457b" TYPE="ext4" PARTUUID="54392d5d-1996-4c62-8842-d91f4a33b602"
/dev/sda1: LABEL="RM-CM-)cupM-CM-)ration" UUID="72E8CBBEE8CB7EBB" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="07380664-6dd4-4925-aeac-a435b34ad9f5"
/dev/sda2: UUID="C4D1-8AAE" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="1ab7abb3-31e4-4289-9a3a-587ac6546242"
/dev/sda4: UUID="B606ECD606EC989F" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="63728c63-f8c6-4f3b-8882-3688c4f80734"
/dev/sdb1: LABEL="images_win10_EFI" UUID="6c14aa5c-a67b-4211-afd2-42ff350e60b0" TYPE="ext4" PARTUUID="52caac94-01"
/dev/sda3: PARTLABEL="Microsoft reserved partition" PARTUUID="c21c3b27-c875-4428-a0d8-0c431338197b"


1 disks with OS, 2 OS : 1 Linux, 0 MacOS, 1 Windows, 0 unknown type OS.

Windows not detected by os-prober on sda4.

=================== /etc/grub.d/ :
drwxr-xr-x  2 root root    4096 mars  24 16:25 grub.d
drwxr-xr-x  2 root root    4096 mars  24 16:15 grub.d.bak
total 128
-rwxr-xr-x 1 root root 10627 mars  11 17:46 00_header
-rwxr-xr-x 1 root root  6258 mars  11 17:46 05_debian_theme
-rwxr-xr-x 1 root root 17123 mars  11 17:46 10_linux
-rwxr-xr-x 1 root root 38596 mars  11 17:46 10_linux_zfs
-rwxr-xr-x 1 root root 12894 mars  11 17:46 20_linux_xen
-rwxr-xr-x 1 root root   833 mars  24 16:26 25_custom
-rwxr-xr-x 1 root root 12059 mars  11 17:46 30_os-prober
-rwxr-xr-x 1 root root  1424 mars  11 17:46 30_uefi-firmware
-rwxr-xr-x 1 root root   214 mars  11 17:46 40_custom
-rwxr-xr-x 1 root root   216 mars  11 17:46 41_custom
-rw-r--r-- 1 root root   483 mars  11 17:46 README




=================== /etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"



/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
Presence of EFI/Microsoft file detected: /boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /boot/efi/EFI/Boot/bkpbootx64.efi
Presence of EFI/Boot file detected: /boot/efi/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /boot/efi/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /boot/efi/EFI/Boot/grubx64.efi
Presence of EFI/Boot file detected: /boot/efi/EFI/Boot/mmx64.efi
Presence of bkp file detected: /boot/efi/EFI/BOOT/bkpbootx64.efi
ls /sys/firmware/efi/vars : Test1-e660597e-b94d-4209-9c80-1805b5d19b69,Test0-e660597e-b94d-4209-9c80-1805b5d19b69,RTC-378d7b65-8da9-4773-b6e4-a47826a833e1,PlatformLangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c,PlatformLang-8be4df61-93ca-11d2-aa0d-00e098032b8c,OsIndicationsSupported-8be4df61-93ca-11d2-aa0d-00e098032b8c,new_var,MTC-eb704011-1402-11d3-8e77-00a0c969723b,MokListRT-605dab50-e046-4300-abb6-3dd810dd8b23,MemoryTypeInformation-4c19049f-4137-4dd3-9c10-8b97a83ffdfa,LangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c,Lang-8be4df61-93ca-11d2-aa0d-00e098032b8c,HDDP-fab7e9e1-39dd-4f2b-8408-e20e906cb6de,FirmwareFeaturesMask-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,FirmwareFeatures-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,del_var,ConOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConOut-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConInDev-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConIn-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootOptionSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootCurrent-8be4df61-93ca-11d2-aa0d-00e098032b8c,boot-args-7c436110-ab2a-4bbb-a880-fe41995c9f82,Boot0004-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0003-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0002-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0001-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0000-8be4df61-93ca-11d2-aa0d-00e098032b8c,BackgroundClear-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,
Veuillez indiquer ce message à boot.repair@gmail.com

=================== efibootmgr -v
BootCurrent: 0004
BootOrder: 0004,0000,0001,0002,0003
Boot0000* EFI DVD/CDROM	PciRoot(0x0)/Pci(0xd,0x0)/Sata(1,0,0)
Boot0001* EFI Hard Drive	PciRoot(0x0)/Pci(0xd,0x0)/Sata(0,0,0)
Boot0002* EFI Hard Drive 1	PciRoot(0x0)/Pci(0xd,0x0)/Sata(2,0,0)
Boot0003* EFI Internal Shell	MemoryMapped(11,0x2100000,0x28fffff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)
Boot0004* ubuntu	HD(2,GPT,1ab7abb3-31e4-4289-9a3a-587ac6546242,0xe1800,0x31800)/File(EFIubuntushimx64.efi)

=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this installed-session.
SecureBoot maybe enabled. (maybe sec-boot, Veuillez indiquer ce message à boot.repair@gmail.com)


=================== PARTITIONS & DISKS:
sda5	: sda,	not-sepboot,	grubenv-ok	grub2,	signed grub-efi ,	update-grub,	64,	with-boot,	is-os,	not--efi--part,	fstab-without-boot,	fstab-has-goodEFI,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	apt-get,	grub-install,	with--usr,	fstab-without-usr,	not-sep-usr,	standard,	not-far,	notbiosboot, .
sda1	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	recovery-or-hidden,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda1.
sda2	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	is-correct-EFI,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /boot/efi.
sda4	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	haswinload,	no-recov-nor-hid,	bootmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda4.
sdb1	: sdb,	maybesepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sdb1.

sda	: GPT,	no-BIOS_boot,	has-correctEFI, 	not-usb,	not-mmc, has-os,	2048 sectors * 512 bytes
sdb	: not-GPT,	BIOSboot-not-needed,	has-no-EFIpart, 	not-usb,	not-mmc, no-os,	2048 sectors * 512 bytes


=================== parted -lm:

BYT;
/dev/sda:43.3GB:scsi:512:512:gpt:ATA VBOX HARDDISK:;
1:1049kB:473MB:472MB:ntfs:Basic data partition:diag;
2:473MB:577MB:104MB:fat32:EFI system partition:boot, esp;
3:577MB:593MB:16.8MB::Microsoft reserved partition:boot, esp;
4:593MB:25.9GB:25.3GB:ntfs:Basic data partition:msftdata;
5:25.9GB:43.3GB:17.4GB:ext4::;

BYT;
/dev/sdb:34.4GB:scsi:512:512:msdos:ATA VBOX HARDDISK:;
1:1049kB:34.4GB:34.4GB:ext4::;

=================== lsblk:
KNAME TYPE FSTYPE  SIZE LABEL
sda   disk        40,3G
sda1  part ntfs    450M Récupération
sda2  part vfat     99M
sda3  part          16M
sda4  part ntfs   23,6G
sda5  part ext4   16,2G
sdb   disk          32G
sdb1  part ext4     32G images_win10_EFI
sr0   rom         1024M

KNAME ROTA RO RM STATE   MOUNTPOINT
sda      1  0  0 running
sda1     1  0  0         /mnt/boot-sav/sda1
sda2     1  0  0         /boot/efi
sda3     1  0  0
sda4     1  0  0         /mnt/boot-sav/sda4
sda5     1  0  0         /
sdb      1  0  0 running
sdb1     1  0  0         /mnt/boot-sav/sdb1
sr0      1  0  1 running


=================== mount:
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,noexec,relatime,size=989024k,nr_inodes=247256,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,noexec,relatime,size=203424k,mode=755)
/dev/sda5 on / type ext4 (rw,relatime,errors=remount-ro)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup2 on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
none on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=27,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=14628)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
/dev/sda2 on /boot/efi type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=203420k,mode=700,uid=1000,gid=1000)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
/dev/fuse on /run/user/1000/doc type fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
/dev/sda1 on /mnt/boot-sav/sda1 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda4 on /mnt/boot-sav/sda4 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sdb1 on /mnt/boot-sav/sdb1 type ext4 (rw,relatime)


=================== ls:
/sys/block/sda (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro sda1 sda2 sda3 sda4 sda5 size slaves stat subsystem trace uevent
/sys/block/sdb (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro sdb1 size slaves stat subsystem trace uevent
/sys/block/sr0 (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro size slaves stat subsystem trace uevent
/dev (filtered):  autofs block bsg btrfs-control bus cdrom char console core cpu_dma_latency cuse disk dri dvd ecryptfs fb0 fd full fuse hidraw0 hpet hugepages hwrng i2c-0 initctl input kmsg lightnvm log mapper mcelog mem mqueue net null port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sda2 sda3 sda4 sda5 sdb sdb1 sg0 sg1 sg2 shm snapshot snd sr0 stderr stdin stdout udmabuf uhid uinput urandom userio vboxguest vboxuser vfio vga_arbiter vhci vhost-net vhost-vsock zero zfs
ls /dev/mapper:  control

=================== hexdump -n512 -C /dev/sda1
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff 0f 0e 00 00 00 00 00  |................|
00000030  00 96 00 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  bb 7e cb e8 be cb e8 72  |.........~.....r|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda2
00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 02 0e 1a  |.X.MSDOS5.0.....|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 18 0e 00  |........?.......|
00000020  00 18 03 00 f9 02 00 00  00 00 00 00 02 00 00 00  |................|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  80 01 29 ae 8a d1 c4 4e  4f 20 4e 41 4d 45 20 20  |..)....NO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 33 c9 8e d1 bc f4  |  FAT32   3.....|
00000060  7b 8e c1 8e d9 bd 00 7c  88 56 40 88 4e 02 8a 56  |{......|.V@.N..V|
00000070  40 b4 41 bb aa 55 cd 13  72 10 81 fb 55 aa 75 0a  |@.A..U..r...U.u.|
00000080  f6 c1 01 74 05 fe 46 02  eb 2d 8a 56 40 b4 08 cd  |...t..F..-.V@...|
00000090  13 73 05 b9 ff ff 8a f1  66 0f b6 c6 40 66 0f b6  |.s......f...@f..|
000000a0  d1 80 e2 3f f7 e2 86 cd  c0 ed 06 41 66 0f b7 c9  |...?.......Af...|
000000b0  66 f7 e1 66 89 46 f8 83  7e 16 00 75 39 83 7e 2a  |f..f.F..~..u9.~*|
000000c0  00 77 33 66 8b 46 1c 66  83 c0 0c bb 00 80 b9 01  |.w3f.F.f........|
000000d0  00 e8 2c 00 e9 a8 03 a1  f8 7d 80 c4 7c 8b f0 ac  |..,......}..|...|
000000e0  84 c0 74 17 3c ff 74 09  b4 0e bb 07 00 cd 10 eb  |..t.<.t.........|
000000f0  ee a1 fa 7d eb e4 a1 7d  80 eb df 98 cd 16 cd 19  |...}...}........|
00000100  66 60 80 7e 02 00 0f 84  20 00 66 6a 00 66 50 06  |f`.~.... .fj.fP.|
00000110  53 66 68 10 00 01 00 b4  42 8a 56 40 8b f4 cd 13  |Sfh.....B.V@....|
00000120  66 58 66 58 66 58 66 58  eb 33 66 3b 46 f8 72 03  |fXfXfXfX.3f;F.r.|
00000130  f9 eb 2a 66 33 d2 66 0f  b7 4e 18 66 f7 f1 fe c2  |..*f3.f..N.f....|
00000140  8a ca 66 8b d0 66 c1 ea  10 f7 76 1a 86 d6 8a 56  |..f..f....v....V|
00000150  40 8a e8 c0 e4 06 0a cc  b8 01 02 cd 13 66 61 0f  |@............fa.|
00000160  82 74 ff 81 c3 00 02 66  40 49 75 94 c3 42 4f 4f  |.t.....f@Iu..BOO|
00000170  54 4d 47 52 20 20 20 20  00 00 00 00 00 00 00 00  |TMGR    ........|
00000180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001a0  00 00 00 00 00 00 00 00  00 00 00 00 0d 0a 45 72  |..............Er|
000001b0  72 2e 20 64 69 73 71 75  65 ff 0d 0a 50 72 65 73  |r. disque...Pres|
000001c0  73 65 7a 20 75 6e 65 20  74 6f 75 63 68 65 20 70  |sez une touche p|
000001d0  6f 75 72 20 72 65 64 82  6d 61 72 72 65 72 0d 0a  |our red.marrer..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 00 00  ac 01 ba 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda4
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 b0 11 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff f7 f2 02 00 00 00 00  |................|
00000030  00 00 0c 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  9f 98 ec 06 d6 ec 06 b6  |................|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== df -Th:

Filesystem     Type      Size  Used Avail Use% Mounted on
udev           devtmpfs  966M     0  966M   0% /dev
tmpfs          tmpfs     199M  1.4M  198M   1% /run
/dev/sda5      ext4       16G  6.8G  8.3G  46% /
tmpfs          tmpfs     994M   16M  978M   2% /dev/shm
tmpfs          tmpfs     5.0M  4.0K  5.0M   1% /run/lock
tmpfs          tmpfs     994M     0  994M   0% /sys/fs/cgroup
/dev/sda2      vfat       95M   72M   24M  76% /boot/efi
tmpfs          tmpfs     199M   96K  199M   1% /run/user/1000
/dev/sda1      fuseblk   450M  389M   62M  87% /mnt/boot-sav/sda1
/dev/sda4      fuseblk    24G   17G  7.3G  70% /mnt/boot-sav/sda4
/dev/sdb1      ext4       32G   16G   15G  53% /mnt/boot-sav/sdb1

=================== fdisk -l:
Disk /dev/sda: 40.33 GiB, 43294556160 bytes, 84559680 sectors
Disk model: VBOX HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 2530EA09-698D-4322-B791-29F4A072F62E

Device        Start      End  Sectors  Size Type
/dev/sda1      2048   923647   921600  450M Windows recovery environment
/dev/sda2    923648  1126399   202752   99M EFI System
/dev/sda3   1126400  1159167    32768   16M EFI System
/dev/sda4   1159168 50636799 49477632 23.6G Microsoft basic data
/dev/sda5  50636800 84557823 33921024 16.2G Linux filesystem




Disk /dev/sdb: 32 GiB, 34359738368 bytes, 67108864 sectors
Disk model: VBOX HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x52caac94

Device     Boot Start      End  Sectors Size Id Type
/dev/sdb1        2048 67108863 67106816  32G 83 Linux




=================== Suggested repair
The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of sda5, using the following options:        sda2/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s   fix-windows-boot use-standard-efi-file  restore-efi-backups


=================== Final advice in case of suggested repair
N'oubliez pas de régler votre BIOS pour qu'il amorce sur le fichier sda2/efi/.../grub*.efi !

Si votre ordinateur redémarre directement sur Windows, essayez de changer l'ordre de démarrage dans votre BIOS.
Si votre BIOS ne permet pas de changer l'ordre de démarrage, changez l'entrée de démarrage par défaut de l'amorceur Windows.
Par exemple, vous pouvez démarrer Windows, puis saisir la commande suivante dans une invite de commande en mode administrateur :
bcdedit /set {bootmgr} path \EFI\...\grub*.efi


=================== User settings
The settings chosen by the user will not act on the boot.

Morceau choisi de ce dernier Boot-info :

=================== PARTITIONS & DISKS:
sda5	: sda,	not-sepboot,	grubenv-ok	grub2,	signed grub-efi 

La purge a été efficace : il n'y a plus trace de grub-pc dans sda5, la partition racine de Ubuntu 20.04. Il y a seulement la version signée de grub-efi

Commentaire sur la réparation : on a toujours un chargeur d'amorçage de Grub dans le MBR du disque dur qui est une relique de l'installation merdique initiale. Ce chargeur n'est pas utilisé pour démarrer Ubuntu (c'est le fichier /efi/ubuntu/shimx64.efi de sda2 qui est utilisé). Moi je n'ai pas proposé de chercher à le virer quand j'ai conseillé une conversion Legacy vers UEFI à des novices.

Dernière modification par malbo (Le 24/03/2020, à 18:12)

geole

Re : Conversion Legacy vers UEFI avec Boot-repair version 4ppa75

Bonjour
Merci de cet essai
Je vois que tu as fais 
1) Un état de départ
2) Un état de la réparation
3) Tu as aussi fait un état après réparation. Yannubuntu m'a dit que c'est inutile puisque c'est fourni à l'étape deux,  il  dit que la sortie info  est produite après la réparation  mais que pour des raisons pratiques, elle est  listée avant.
Peut-être faudrait-il lui demander d'ajouter une ligne de séparation plus claire  avant  les réparations dont le début n'est pas systématiquement le même, du style
============================= Voici le début des réparations. Rappel ce qui précède  est le résultat de la réparation ==============
Dans ton contexte les lignes sont  les suivantes. Je les verrais d'ailleurs bien écrites en couleurs.

=================== Recommended repair
The default repair of the Boot-Repair utility will purge (in order to fix packages) and reinstall the grub-efi-amd64-signed of sda5, using the following options:        sda2/boot/efi,
Additional repair will be performed: unhide-bootmenu-10s   fix-windows-boot use-standard-efi-file  restore-efi-backups

D'autre part, un boot en légacy ne peut absolument  pas mettre une structure EFI car il n'a pas accès  aux variables EFI!!! .
Il en est de même pour un boot  en EFI dont on aurait interdit l'accès aux variables EFI avec l'option noefi
Bonne soirée.

---

Les grilles de l'installateur https://doc.ubuntu-fr.org/tutoriel/inst … _subiquity
"gedit admin:///etc/fstab" est proscrit,  utilisez "pkexec env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY xdg-open /etc/fstab" Voir  https://doc.ubuntu-fr.org/gedit
Les partitions EXT4 des disques externes => https://forum.ubuntu-fr.org/viewtopic.p … #p22697248

malbo

Re : Conversion Legacy vers UEFI avec Boot-repair version 4ppa75

3) Tu as aussi fait un état après réparation. Yannubuntu m'a dit que c'est inutile puisque c'est fourni à l'étape deux,

Bonjour,
C'est peut-être bien vrai mais moi j'ai besoin de voir un Boot-info réalisé depuis le Ubuntu réparé : là j'y crois.   

D'autre part, un boot en légacy ne peut absolument  pas mettre une structure EFI car il n'a pas accès  aux variables EFI!!! .

Je ne sais pas interpréter ça. Est-ce à dire qu'il aurait quelque chose à rectifier dans le post #1 selon toi ?

geole

Re : Conversion Legacy vers UEFI avec Boot-repair version 4ppa75

Bonjour Malbo
Sur le point 1, je suis un peu d'accord avec toi.  Si je suis courageux, je vais comparer les boot-infos N°2 et  N°3 en oubliant la partie réparation.

Sur  le dernier point, je voulais simplement dire que, par rapport à ton autre discussion de réparer en legacy, je considère qu'un boot EFI est capable de bien réparer en legacy s'il paramètre coorectement  la commande en mettant les bonnes options LEGACY.
Mais que dans un boot legacy,  même si on paramètre bien la commande, on ne pourra pas faire l'exécution correctement car les "variables" EFI sont  seulement positionnées au démarrage de l'ordinateur et cette commande " modprobe efivars" ne s'exécute pas correctement. D'où l'impossibilité de communiquer avec la NVRAM et comme le fichier /boot/grub/grub.cfg est fabriqué après (en non avant) la mise à jour de la RAM, il ne sera pas créé.

---

Les grilles de l'installateur https://doc.ubuntu-fr.org/tutoriel/inst … _subiquity
"gedit admin:///etc/fstab" est proscrit,  utilisez "pkexec env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY xdg-open /etc/fstab" Voir  https://doc.ubuntu-fr.org/gedit
Les partitions EXT4 des disques externes => https://forum.ubuntu-fr.org/viewtopic.p … #p22697248

malbo

Re : Conversion Legacy vers UEFI avec Boot-repair version 4ppa75

Merci pour ces précisions.

YannUbuntu

Re : Conversion Legacy vers UEFI avec Boot-repair version 4ppa75

bjr
je viens de tomber sur cette discussion par hasard. Merci Malbo pour le test.

Mais que dans un boot legacy,  même si on paramètre bien la commande, on ne pourra pas faire l'exécution correctement car les "variables" EFI sont  seulement positionnées au démarrage de l'ordinateur et cette commande " modprobe efivars" ne s'exécute pas correctement. D'où l'impossibilité de communiquer avec la NVRAM et comme le fichier /boot/grub/grub.cfg est fabriqué après (en non avant) la mise à jour de la RAM, il ne sera pas créé.

je confirme. C'est pourquoi Boot-Repair s'assure qu'il est bien en session EFI s'il veut installer grub-efi.

ah, et je vais essayer d'implementer ============================= Voici le début des réparations. Rappel ce qui précède  est le résultat de la réparation ==============

---

à consulter/améliorer: Guide du Débutant, Logiciels, Ecole, Travail, Maison