#1 Le 08/12/2024, à 17:30
- Fils-de-Crao
(résolu) upgrade de 22 vers 24.04 qui bloque sur le BIOS
Bonjour
Un portable Lenovo idea pad
Tournait bien sous Ubuntu 22
Mais suite à la maj vers 24.04.1 redémarre sur le Bios, systématiquement.
Un live USB sous cinnamon (que j'avais sous la main) m'a permis de récupérer mes fichiers urgents en cours sur le home
D'autre live USB ne boot pas (par exemple un linux mint)
Mais boot repair sous mint en live tourne.
J'en ai profité pour faire une réparation du démarrage, et un boot info (ci-dessous)
Un live de 24.04.1 démarre, je tente une réinstallation de zéro, qui est tréééés longue, cela se finalise, mais ne redémarre pas (je retombe sur le Bios).
De guerre lasse j'ai monté un live USB Xubuntu, qui ne boot pas du tout...
Bref, je suis perdu...
boot-repair-4ppa2081 [20241208_1612]
============================= Boot Repair Summary ==============================
Recommended repair: ____________________________________________________________
The default repair of the Boot-Repair utility will reinstall the grub-efi of
nvme0n1p2,
using the following options: nvme0n1p1/boot/efi
Additional repair will be performed: unhide-bootmenu-10s use-standard-efi-file restore-efi-backups
/boot/efi added in nvme0n1p2/fstab
rm /mnt/boot-sav/nvme0n1p1/efi/Boot/bootx64.efi
mv /mnt/boot-sav/nvme0n1p1/efi/Boot/bkpbootx64.efi /mnt/boot-sav/nvme0n1p1/efi/Boot/bootx64.efi
Mount /dev/nvme0n1p1 on /mnt/boot-sav/nvme0n1p2/boot/efi
Unhide GRUB boot menu in nvme0n1p2/etc/default/grub
=================== Reinstall the grub-efi of /dev/nvme0n1p2 ===================
chroot /mnt/boot-sav/nvme0n1p2 grub-install --version
grub-install (GRUB) 2.12-1ubuntu7
modprobe: FATAL: Module efivars not found in directory /lib/modules/5.15.0-76-generic
chroot /mnt/boot-sav/nvme0n1p2 modprobe efivars
chroot /mnt/boot-sav/nvme0n1p2 efibootmgr -v (filtered) before grub install
BootCurrent: 0015
Timeout: 0 seconds
BootOrder: 0015,0001,0013,0000,0014,0016,0017,0018
Boot0000* Windows Boot Manager HD(1,GPT,9b42189d-9e1d-4053-b7bc-2d02b3720114,0x800,0x100000)/File(EFIMicrosoftBootbootmgfw.efi)57494e444f5753000100000088000000780000004200430044004f0042004a004500430054003d007b00390064006500610038003600320063002d0035006300640064002d0034006500370030002d0061006300630031002d006600330032006200330034003400640034003700390035007d00000000000100000010000000040000007fff0400
Boot0001* Ubuntu HD(1,GPT,9b42189d-9e1d-4053-b7bc-2d02b3720114,0x800,0x100000)/File(EFIubuntushimx64.efi)
Boot0010 Setup FvFile(721c8b66-426c-4e86-8e99-3457c46ab0b9)
Boot0011 Boot Menu FvFile(86488440-41bb-42c7-93ac-450fbf7766bf)
Boot0012 Diagnostic Splash FvFile(a7d8d9a6-6ab0-4aeb-ad9d-163e59a7a380)
Boot0013* NVMe: KBG40ZMT128G TOSHIBA MEMORY PciRoot(0x0)/Pci(0x13,0x0)/Pci(0x0,0x0)/NVMe(0x1,8C-E3-8E-04-02-96-19-21){99191c00-d932-4e4c-ae9a-a0b6e98eb8a4}
Boot0014* eMMC Card: VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,63a04a38d7705b4888c69653c982e114)
Boot0015* USB HDD: USB Flash Disk PciRoot(0x0)/Pci(0x15,0x0)/USB(2,0){aa21e833-33af-47bc-89bd-419f88c50803}
Boot0016* USB FDD: VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,6ff015a28830b543a8b8641009461e49)
Boot0017* USB CD: VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,86701296aa5a7848b66cd49dd3ba6a55)
Boot0018* USB LAN: VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,e854bca4cae7704ca322b00da0376322)
chroot /mnt/boot-sav/nvme0n1p2 uname -r
5.15.0-76-generic
chroot /mnt/boot-sav/nvme0n1p2 grub-install --efi-directory=/boot/efi --target=x86_64-efi
Installing for x86_64-efi platform.
grub-install: warning: EFI variables cannot be set on this system.
grub-install: warning: You will have to complete the GRUB setup manually.
Installation finished. No error reported.
df /dev/nvme0n1p1
mv /mnt/boot-sav/nvme0n1p2/boot/efi/EFI/Boot/bootx64.efi /mnt/boot-sav/nvme0n1p2/boot/efi/EFI/Boot/bkpbootx64.efi
cp /mnt/boot-sav/nvme0n1p2/boot/efi/efi/ubuntu/grubx64.efi /mnt/boot-sav/nvme0n1p2/boot/efi/EFI/Boot/bootx64.efi
chroot /mnt/boot-sav/nvme0n1p2 grub-install --efi-directory=/boot/efi --target=x86_64-efi
Installing for x86_64-efi platform.
grub-install: warning: EFI variables cannot be set on this system.
grub-install: warning: You will have to complete the GRUB setup manually.
Installation finished. No error reported.
chroot /mnt/boot-sav/nvme0n1p2 efibootmgr -v (filtered) after grub install
BootCurrent: 0015
Timeout: 0 seconds
BootOrder: 0015,0001,0013,0000,0014,0016,0017,0018
Boot0000* Windows Boot Manager HD(1,GPT,9b42189d-9e1d-4053-b7bc-2d02b3720114,0x800,0x100000)/File(EFIMicrosoftBootbootmgfw.efi)57494e444f5753000100000088000000780000004200430044004f0042004a004500430054003d007b00390064006500610038003600320063002d0035006300640064002d0034006500370030002d0061006300630031002d006600330032006200330034003400640034003700390035007d00000000000100000010000000040000007fff0400
Boot0001* Ubuntu HD(1,GPT,9b42189d-9e1d-4053-b7bc-2d02b3720114,0x800,0x100000)/File(EFIubuntushimx64.efi)
Boot0010 Setup FvFile(721c8b66-426c-4e86-8e99-3457c46ab0b9)
Boot0011 Boot Menu FvFile(86488440-41bb-42c7-93ac-450fbf7766bf)
Boot0012 Diagnostic Splash FvFile(a7d8d9a6-6ab0-4aeb-ad9d-163e59a7a380)
Boot0013* NVMe: KBG40ZMT128G TOSHIBA MEMORY PciRoot(0x0)/Pci(0x13,0x0)/Pci(0x0,0x0)/NVMe(0x1,8C-E3-8E-04-02-96-19-21){99191c00-d932-4e4c-ae9a-a0b6e98eb8a4}
Boot0014* eMMC Card: VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,63a04a38d7705b4888c69653c982e114)
Boot0015* USB HDD: USB Flash Disk PciRoot(0x0)/Pci(0x15,0x0)/USB(2,0){aa21e833-33af-47bc-89bd-419f88c50803}
Boot0016* USB FDD: VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,6ff015a28830b543a8b8641009461e49)
Boot0017* USB CD: VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,86701296aa5a7848b66cd49dd3ba6a55)
Boot0018* USB LAN: VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,e854bca4cae7704ca322b00da0376322)
Warning: NVram was not modified.
chroot /mnt/boot-sav/nvme0n1p2 update-grub
Sourcing file `/etc/default/grub'
Found linux image: /boot/vmlinuz-6.8.0-49-generic
Found initrd image: /boot/initrd.img-6.8.0-49-generic
Found memtest86+ 64bit EFI image: /boot/memtest86+x64.efi
Adding boot menu entry for UEFI Firmware Settings ...
Unhide GRUB boot menu in nvme0n1p2/boot/grub/grub.cfg
Boot successfully repaired.
You can now reboot your computer.
Please do not forget to make your UEFI firmware boot on the Ubuntu 24.04 LTS entry (nvme0n1p1/efi/ubuntu/grubx64.efi file) !
============================ Boot Info After Repair ============================
=> No boot loader is installed in the MBR of /dev/nvme0n1.
=> Syslinux MBR (5.00 and higher) is installed in the MBR of /dev/sda.
nvme0n1p1: _____________________________________________________________________
File system: vfat
Boot sector type: FAT32
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /efi/BOOT/bkpbootx64.efi /efi/BOOT/bootx64.efi
/efi/BOOT/fbx64.efi /efi/BOOT/grubx64.efi
/efi/BOOT/mmx64.efi /efi/ubuntu/grubx64.efi
/efi/ubuntu/mmx64.efi /efi/ubuntu/shimx64.efi
/efi/ubuntu/grub.cfg /efi/Microsoft/Boot/bootmgfw.efi
nvme0n1p2: _____________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 24.04 LTS
Boot files: /boot/grub/grub.cfg /etc/fstab /etc/default/grub
sda1: __________________________________________________________________________
File system: vfat
Boot sector type: SYSLINUX 6.03 2014-10-06................................................2....0............A20 gate n
Boot sector info: Syslinux looks at sector 5155752 of /dev/sda1 for its
second stage. SYSLINUX is installed in the directory.
No errors found in the Boot Parameter Block.
Operating System:
Boot files: /boot/grub/grub.cfg /syslinux/syslinux.cfg
/efi/boot/bootx64.efi /efi/boot/grubx64.efi
/efi/boot/mmx64.efi /ldlinux.sys
================================ 1 OS detected =================================
OS#1 (linux): Ubuntu 24.04 LTS on nvme0n1p2
================================ Host/Hardware =================================
CPU architecture: 64-bit
Video: GeminiLake [UHD Graphics 600] from Intel Corporation
Live-session OS is Linuxmint 64-bit (Linux Mint 21.2, victoria, x86_64)
===================================== UEFI =====================================
BIOS/UEFI firmware: DWCN27WW(1.27) from LENOVO
The firmware is EFI-compatible, and is set in EFI-mode for this live-session.
SecureBoot disabled (confirmed by mokutil).
BootCurrent: 0015
Timeout: 0 seconds
BootOrder: 0015,0001,0013,0000,0014,0016,0017,0018
Boot0000* Windows Boot Manager HD(1,GPT,9b42189d-9e1d-4053-b7bc-2d02b3720114,0x800,0x100000)/File(\EFI\Microsoft\Boot\bootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}....................
Boot0001* Ubuntu HD(1,GPT,9b42189d-9e1d-4053-b7bc-2d02b3720114,0x800,0x100000)/File(\EFI\ubuntu\shimx64.efi)
Boot0010 Setup FvFile(721c8b66-426c-4e86-8e99-3457c46ab0b9)
Boot0011 Boot Menu FvFile(86488440-41bb-42c7-93ac-450fbf7766bf)
Boot0012 Diagnostic Splash FvFile(a7d8d9a6-6ab0-4aeb-ad9d-163e59a7a380)
Boot0013* NVMe: KBG40ZMT128G TOSHIBA MEMORY PciRoot(0x0)/Pci(0x13,0x0)/Pci(0x0,0x0)/NVMe(0x1,8C-E3-8E-04-02-96-19-21)....2.LN........
Boot0014* eMMC Card: VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,63a04a38d7705b4888c69653c982e114)
Boot0015* USB HDD: USB Flash Disk PciRoot(0x0)/Pci(0x15,0x0)/USB(2,0)3.!..3.G..A.....
Boot0016* USB FDD: VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,6ff015a28830b543a8b8641009461e49)
Boot0017* USB CD: VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,86701296aa5a7848b66cd49dd3ba6a55)
Boot0018* USB LAN: VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,e854bca4cae7704ca322b00da0376322)
07e25dcaf57c776875f78fa36827c58e nvme0n1p1/BOOT/bkpbootx64.efi
07e25dcaf57c776875f78fa36827c58e nvme0n1p1/BOOT/bootx64.efi
39bc76ff6662f4fbe9aa116e4c997b41 nvme0n1p1/BOOT/fbx64.efi
a1da253696a304dce6b4668b70151c0e nvme0n1p1/BOOT/grubx64.efi
4ba5a5aad43c197e9fb58b76b404d287 nvme0n1p1/BOOT/mmx64.efi
66f69798ad23240e43b7ba0044a914c4 nvme0n1p1/ubuntu/grubx64.efi
4ba5a5aad43c197e9fb58b76b404d287 nvme0n1p1/ubuntu/mmx64.efi
07e25dcaf57c776875f78fa36827c58e nvme0n1p1/ubuntu/shimx64.efi
7e494801bb7163fd063f386d7bc75ed8 nvme0n1p1/Microsoft/Boot/bootmgfw.efi
============================= Drive/Partition Info =============================
Disks info: ____________________________________________________________________
nvme0n1 : is-GPT, no-BIOSboot, has---ESP, not-usb, not-mmc, has-os, no-wind, 2048 sectors * 512 bytes
Partitions info (1/3): _________________________________________________________
nvme0n1p1 : no-os, 64, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
nvme0n1p2 : is-os, 64, apt-get, signed grub-efi , grub2, grub-install, grubenv-ok, update-grub, end-after-100GB
Partitions info (2/3): _________________________________________________________
nvme0n1p1 : is---ESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, vfat
nvme0n1p2 : isnotESP, fstab-has-bad-efi, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, ext4
Partitions info (3/3): _________________________________________________________
nvme0n1p1 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, nvme0n1
nvme0n1p2 : not--sepboot, with-boot, fstab-without-boot, not-sep-usr, with--usr, fstab-without-usr, std-grub.d, nvme0n1
fdisk -l (filtered): ___________________________________________________________
Disk nvme0n1: 119.24 GiB, 128035676160 bytes, 250069680 sectors
Disk identifier: D8C38F97-03D5-419F-9894-E8A2B1CCC794
Start End Sectors Size Type
nvme0n1p1 2048 1050623 1048576 512M EFI System
nvme0n1p2 1050624 250066943 249016320 118.7G Linux filesystem
Disk sda: 3.75 GiB, 4026531840 bytes, 7864320 sectors
Disk identifier: 0x00000000
Boot Start End Sectors Size Id Type
sda1 * 128 7864319 7864192 3.7G b W95 FAT32
parted -lm (filtered): _________________________________________________________
sda:4027MB:scsi:512:512:msdos:IS817 innostor:;
1:65.5kB:4027MB:4026MB:fat32::boot;
nvme0n1:128GB:nvme:512:512:gpt:KBG40ZMT128G TOSHIBA MEMORY:;
1:1049kB:538MB:537MB:fat32:EFI System Partition:boot, esp;
2:538MB:128GB:127GB:ext4::;
blkid (filtered): ______________________________________________________________
NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda
└─sda1 vfat 823F-9862 LINUX LIVE
nvme0n1
├─nvme0n1p1 vfat A364-46FC 9b42189d-9e1d-4053-b7bc-2d02b3720114 EFI System Partition
└─nvme0n1p2 ext4 41523a9a-9c33-4bc8-83fb-577fdf6c2be9 8aeda2b3-96cc-47f5-9f14-1e4eefd1c6bc
Mount points (filtered): _______________________________________________________
Avail Use% Mounted on
/dev/nvme0n1p1 499M 2% /mnt/boot-sav/nvme0n1p1
/dev/nvme0n1p2 100.7G 8% /mnt/boot-sav/nvme0n1p2
/dev/sda1 1.3G 65% /cdrom
Mount options (filtered): ______________________________________________________
/dev/nvme0n1p1 vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
/dev/nvme0n1p2 ext4 rw,relatime
/dev/sda1 vfat ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
=================== nvme0n1p1/efi/ubuntu/grub.cfg (filtered) ===================
search.fs_uuid 41523a9a-9c33-4bc8-83fb-577fdf6c2be9 root
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
=================== nvme0n1p2/boot/grub/grub.cfg (filtered) ====================
Ubuntu 41523a9a-9c33-4bc8-83fb-577fdf6c2be9
### END /etc/grub.d/30_os-prober ###
UEFI Firmware Settings uefi-firmware
### END /etc/grub.d/30_uefi-firmware ###
======================== nvme0n1p2/etc/fstab (filtered) ========================
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/nvme0n1p2 during curtin installation
/dev/disk/by-uuid/41523a9a-9c33-4bc8-83fb-577fdf6c2be9 / ext4 defaults 0 1
# /boot/efi was on /dev/nvme0n1p1 during curtin installation
/swap.img none swap sw 0 0
UUID=A364-46FC /boot/efi vfat defaults 0 1
==================== nvme0n1p2/etc/default/grub (filtered) =====================
GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=menu
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`( . /etc/os-release; echo ${NAME:-Ubuntu} ) 2>/dev/null || echo Ubuntu`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
GRUB_DISABLE_OS_PROBER=false
================= nvme0n1p2: Location of files loaded by Grub ==================
GiB - GB File Fragment(s)
?? = ?? boot/grub/grub.cfg 1
12.671154022 = 13.605548032 boot/vmlinuz 1
12.671154022 = 13.605548032 boot/vmlinuz-6.8.0-49-generic 1
12.671154022 = 13.605548032 boot/vmlinuz.old 1
82.999641418 = 89.120186368 boot/initrd.img 2
82.999641418 = 89.120186368 boot/initrd.img-6.8.0-49-generic 2
82.999641418 = 89.120186368 boot/initrd.img.old 2
=================== nvme0n1p2: ls -l /etc/grub.d/ (filtered) ===================
-rwxr-xr-x 1 root root 18133 Apr 4 2024 10_linux
-rwxr-xr-x 1 root root 43202 Apr 4 2024 10_linux_zfs
-rwxr-xr-x 1 root root 14513 Apr 4 2024 20_linux_xen
-rwxr-xr-x 1 root root 786 Apr 4 2024 25_bli
-rwxr-xr-x 1 root root 13120 Apr 4 2024 30_os-prober
-rwxr-xr-x 1 root root 1174 Apr 4 2024 30_uefi-firmware
-rwxr-xr-x 1 root root 722 Apr 5 2024 35_fwupd
-rwxr-xr-x 1 root root 214 Apr 4 2024 40_custom
-rwxr-xr-x 1 root root 215 Apr 4 2024 41_custom
====================== sda1/boot/grub/grub.cfg (filtered) ======================
Start Boot-Repair-Disk 64-bit
Start Boot-Repair-Disk 64-bit (compatibility mode)
UEFI Firmware Settings
Test memory
==================== sda1/syslinux/syslinux.cfg (filtered) =====================
default vesamenu.c32
timeout 100
menu background splash.png
menu title Welcome to Boot-Repair-Disk 64-bit
menu color screen 37;40 #80ffffff #00000000 std
MENU COLOR border 30;44 #40ffffff #a0000000 std
MENU COLOR title 1;36;44 #ffffffff #a0000000 std
MENU COLOR sel 7;37;40 #e0ffffff #20ffffff all
MENU COLOR unsel 37;44 #50ffffff #a0000000 std
MENU COLOR help 37;40 #c0ffffff #a0000000 std
MENU COLOR timeout_msg 37;40 #80ffffff #00000000 std
MENU COLOR timeout 1;37;40 #c0ffffff #00000000 std
MENU COLOR msg07 37;40 #90ffffff #a0000000 std
MENU COLOR tabmsg 31;40 #ffDEDEDE #00000000 std
MENU WIDTH 78
MENU MARGIN 15
MENU ROWS 6
MENU VSHIFT 10
MENU TABMSGROW 11
MENU CMDLINEROW 11
MENU HELPMSGROW 15
MENU HELPMSGENDROW 28
label live
menu label Start Boot-Repair-Disk
kernel /casper/vmlinuz
append file=/cdrom/preseed/linuxmint.seed boot=casper initrd=/casper/initrd.lz quiet splash --
menu default
label xforcevesa
menu label Start in compatibility mode
kernel /casper/vmlinuz
append file=/cdrom/preseed/linuxmint.seed boot=casper initrd=/casper/initrd.lz noapic noacpi nosplash irqpoll nomodeset --
==================== sda1: Location of files loaded by Grub ====================
GiB - GB File Fragment(s)
?? = ?? boot/grub/grub.cfg 1
================== sda1: Location of files loaded by Syslinux ==================
GiB - GB File Fragment(s)
?? = ?? syslinux/syslinux.cfg 1
?? = ?? ldlinux.sys 1
?? = ?? ldlinux.c32 1
?? = ?? syslinux/chain.c32 1
?? = ?? syslinux/hdt.c32 1
?? = ?? syslinux/ldlinux.c32 1
?? = ?? syslinux/libcom32.c32 1
?? = ?? syslinux/libgpl.c32 1
?? = ?? syslinux/libmenu.c32 1
?? = ?? syslinux/libutil.c32 1
?? = ?? syslinux/vesamenu.c32 1
=============== sda1: Version of COM32(R) files used by Syslinux ===============
ldlinux.c32 : not a COM32/COM32R module
syslinux/chain.c32 : not a COM32/COM32R module
syslinux/hdt.c32 : not a COM32/COM32R module
syslinux/ldlinux.c32 : not a COM32/COM32R module
syslinux/libcom32.c32 : not a COM32/COM32R module
syslinux/libgpl.c32 : not a COM32/COM32R module
syslinux/libmenu.c32 : not a COM32/COM32R module
syslinux/libutil.c32 : not a COM32/COM32R module
syslinux/vesamenu.c32 : not a COM32/COM32R module
sprunge.us ko ()Dernière modification par Fils-de-Crao (Le 10/12/2024, à 16:50)
Hors ligne
#2 Le 10/12/2024, à 16:49
- Fils-de-Crao
Re : (résolu) upgrade de 22 vers 24.04 qui bloque sur le BIOS
Incroyable, j'ai trouvé la réponse sur ce forum, dans une problématique posée par moi-même en août 2023...
Je la forward ici, au cas où.
Possible que ton ordinateur veuille à tout prix booter windows et qu'il ne sait pas dire que windows est absent. ("Boot0000* Windows Boot Manager HD(1,GPT,01a3c44a-6748-46c9-8e8b-2213fded6355,0x800,0x100000)/File(\EFI\Microsoft\Boot\bootmgfw.efi)WINDOWS.")
Boote avec le support d'installation.
Monte la partition de boot.
sudo mount -v /dev/nvme0n1p1 /mntFabrique la structure de boot de windows détruite.
sudo mkdir -pv /mnt/EFI/Microsoft/Bootet colle-y le fichier de boot de ubuntu.
sudo cp -v /mnt/EFI/ubuntu/grubx64.efi /mnt/EFI/Microsoft/Boot/bootmgfw.efiHors ligne