Je colle ci-dessous le Boot-info dont tu as donné le lien (
https://paste.ubuntu.com/p/fTZx65RJvT ) dans le post #7 :
boot-info-4ppa102 [20200508_1144]
============================== Boot Info Summary ===============================
=> No boot loader is installed in the MBR of /dev/sda.
=> Syslinux MBR (5.00 and higher) is installed in the MBR of /dev/sdb.
=> No boot loader is installed in the MBR of /dev/sdc.
sda1: __________________________________________________________________________
File system: vfat
Boot sector type: FAT32
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /efi/BOOT/fbx64.efi /efi/BOOT/mmx64.efi
/efi/ubuntu/grubx64.efi /efi/ubuntu/mmx64.efi
/efi/ubuntu/shimx64.efi /efi/ubuntu/grub.cfg
sda2: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 20.04 LTS
Boot files: /boot/grub/grub.cfg /etc/fstab /etc/default/grub
sdb1: __________________________________________________________________________
File system: vfat
Boot sector type: SYSLINUX 6.04
Boot sector info: Syslinux looks at sector 32776 of /dev/sdb1 for its
second stage. The integrity check of Syslinux failed.
No errors found in the Boot Parameter Block.
Operating System:
Boot files: /boot/grub/grub.cfg /syslinux.cfg
/efi/BOOT/grubx64.efi /efi/BOOT/mmx64.efi /ldlinux.sys
sdc1: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 7/2008: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
================================ 1 OS detected =================================
OS#1: L'OS actuellement utilisé - Ubuntu 20.04 LTS CurrentSession on sda2
============================ Architecture/Host Info ============================
CPU architecture: 64-bit
BOOT_IMAGE of the installed session in use:
/boot/vmlinuz-5.4.0-29-generic root=UUID=bdc319e0-a7f1-4df9-8698-18059b45353f ro quiet splash vt.handoff=7
===================================== UEFI =====================================
BIOS is EFI-compatible, and is setup in EFI-mode for this installed-session.
efibootmgr -v
BootCurrent: 0002
Timeout: 0 seconds
BootOrder: 0002,0000,0003,0001
Boot0000* Hard Drive BBS(HD,,0x0)
Boot0001 CD/DVD Drive BBS(CDROM,,0x0)
Boot0002* ubuntu HD(1,GPT,d48020af-e73c-4abe-bd9d-fce7c8495fea,0x800,0x100000)/File(FIuntu\shimx64.efi)
Boot0003* UEFI: USB USB Hard Drive PciRoot(0x0)/Pci(0x1d,0x0)/USB(1,0)/USB(4,0)/HD(1,MBR,0x16003110,0x800,0xe6f800)
bed45d1c9554cea09924d3814cb7c446 sda1/BOOT/fbx64.efi
4487628005555bfd4a4c0a47211e0700 sda1/BOOT/mmx64.efi
98bea152fadd26c4e9136916f6cc32a8 sda1/ubuntu/grubx64.efi
4487628005555bfd4a4c0a47211e0700 sda1/ubuntu/mmx64.efi
f7a57b08bc7c1c85417ae4cea582d1d4 sda1/ubuntu/shimx64.efi
f7a57b08bc7c1c85417ae4cea582d1d4 sda1/BOOT/BOOTX64.efi
109e2fc4aa9786cd887ed6f95c485951 sdb1/BOOT/grubx64.efi
4487628005555bfd4a4c0a47211e0700 sdb1/BOOT/mmx64.efi
f7a57b08bc7c1c85417ae4cea582d1d4 sdb1/BOOT/BOOTx64.efi
============================= Drive/Partition Info =============================
Disks info: ____________________________________________________________________
sda : GPT, noBIOSboot, has---ESP, not-usb, not-mmc, has-os, 2048 sectors * 512 bytes
sdb : not-GPT, noBIOSboot, has---ESP, liveusb, livemmc, no-os, 2048 sectors * 512 bytes
sdc : not-GPT, noBIOSboot, has-noESP, usb-disk, not-mmc, no-os, 64 sectors * 512 bytes
Partitions info (1/3): _________________________________________________________
sda2 : is-os, 64, apt-get, signed grub-pc grub-efi , grub2, grub-install, grubenv-ng, update-grub, farbios
sda1 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
sdb1 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
sdc1 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, farbios
Partitions info (2/3): _________________________________________________________
sda2 : isnotESP, fstab-has-goodEFI, notbiosboot, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
sda1 : is---ESP, part-has-no-fstab, notbiosboot, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
sdb1 : is---ESP, part-has-no-fstab, notbiosboot, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
sdc1 : isnotESP, part-has-no-fstab, notbiosboot, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
Partitions info (3/3): _________________________________________________________
sda2 : not-sepboot, with-boot, fstab-without-boot, not-sep-usr, with--usr, fstab-without-usr, std-grub.d, sda
sda1 : not-sepboot, no-boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, std-grub.d, sda
sdb1 : not-sepboot, no-kernel, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, std-grub.d, sdb
sdc1 : not-sepboot, no-boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, std-grub.d, sdc
fdisk -l (filtered): ___________________________________________________________
Disk sda: 596.18 GiB, 640135028736 bytes, 1250263728 sectors
Start End Sectors Size Type
sda1 2048 1050623 1048576 512M EFI System
sda2 1050624 1250263039 1249212416 595.7G Linux filesystem
Disk sdb: 7.22 GiB, 7751073792 bytes, 15138816 sectors
Boot Start End Sectors Size Id Type
sdb1 * 2048 15138815 15136768 7.2G c W95 FAT32 (LBA)
Disk sdc: 465.78 GiB, 500107861504 bytes, 976773167 sectors
Boot Start End Sectors Size Id Type
sdc1 * 64 976768128 976768065 465.8G 7 HPFS/NTFS/exFAT
parted -lm (filtered): _________________________________________________________
sda:640GB:scsi:512:4096:gpt:ATA WDC WD6400BPVT-8:;
1:1049kB:538MB:537MB:fat32:EFI System Partition:boot, esp;
2:538MB:640GB:640GB:ext4::;
sdb:7751MB:scsi:512:512:msdos:Kingston DataTraveler 3.0:;
1:1049kB:7751MB:7750MB:fat32::boot, lba;
sdc:500GB:scsi:512:4096:msdos:Seagate M3 Portable:;
1:32.8kB:500GB:500GB:ntfs::boot;
blkid (filtered): ______________________________________________________________
NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda
sda1 vfat 7941-C7DE d48020af-e73c-4abe-bd9d-fce7c8495fea EFI System Partition
sda2 ext4 bdc319e0-a7f1-4df9-8698-18059b45353f e837fba6-00a6-4325-b059-2ce4a5dda6bb
sdb
sdb1 vfat B47B-48EE 16003110-01 UBUNTU 20_0
sdc
sdc1 ntfs D2622B90622B787D 6ce6b0e1-01 PGIRON_1To
df (filtered): _________________________________________________________________
Avail Use% Mounted on
sda2 528.2G 5% /
sdb1 4.7G 35% /mnt/boot-sav/sdb1
sdc1 419.5G 10% /media/pgiron/PGIRON_1To
Mount options: __________________________________________________________________
sda2 rw,relatime,errors=remount-ro
sdb1 rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
sdc1 rw,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096
=========================== sda1/efi/ubuntu/grub.cfg ===========================
search.fs_uuid bdc319e0-a7f1-4df9-8698-18059b45353f root hd1,gpt2
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
====================== sda2/boot/grub/grub.cfg (filtered) ======================
Ubuntu
Ubuntu, avec Linux 5.4.0-29-generic
Ubuntu, avec Linux 5.4.0-28-generic
### END /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_uefi-firmware ###
========================== sda2/etc/fstab (filtered) ===========================
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sdb2 during installation
UUID=bdc319e0-a7f1-4df9-8698-18059b45353f / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sdb1 during installation
UUID=7941-C7DE /boot/efi vfat umask=0077 0 1
/swapfile none swap sw 0 0
======================= sda2/etc/default/grub (filtered) =======================
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=""
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
#GRUB_TERMINAL=console
#GRUB_GFXMODE=640x480
#GRUB_DISABLE_LINUX_UUID=true
#GRUB_DISABLE_RECOVERY="true"
#GRUB_INIT_TUNE="480 440 1"
==================== sda2: Location of files loaded by Grub ====================
GiB - GB File Fragment(s)
34,924449921 = 37,499842560 boot/grub/grub.cfg 2
469,972770691 = 504,629420032 boot/vmlinuz 1
469,074333191 = 503,664730112 boot/vmlinuz-5.4.0-28-generic 1
469,972770691 = 504,629420032 boot/vmlinuz-5.4.0-29-generic 1
469,074333191 = 503,664730112 boot/vmlinuz.old 1
470,169250488 = 504,840388608 boot/initrd.img 2
469,382968903 = 503,996125184 boot/initrd.img-5.4.0-28-generic 3
470,169250488 = 504,840388608 boot/initrd.img-5.4.0-29-generic 2
469,382968903 = 503,996125184 boot/initrd.img.old 3
====================== sdb1/boot/grub/grub.cfg (filtered) ======================
Ubuntu
Ubuntu (safe graphics)
OEM install (for manufacturers)
Boot from next volume
UEFI Firmware Settings
========================= sdb1/syslinux.cfg (filtered) =========================
DEFAULT loadconfig
LABEL loadconfig
CONFIG /isolinux/isolinux.cfg
APPEND /isolinux/
==================== sdb1: Location of files loaded by Grub ====================
GiB - GB File Fragment(s)
?? = ?? boot/grub/grub.cfg 1
================== sdb1: Location of files loaded by Syslinux ==================
GiB - GB File Fragment(s)
?? = ?? syslinux.cfg 1
?? = ?? ldlinux.sys 1
Unmount sdb1 from /media/pgiron/UBUNTU 20_0/ to avoid special characters (& or \ or space) incompatibilities
Suggested repair: ______________________________________________________________
The default repair of the Boot-Repair utility would purge (in order to remove grub-efi) and reinstall the grub2 of
sda2 into the MBRs of all disks (except live-disks and removable disks without OS).
Grub-efi would not be selected by default because: no-win-efi
Additional repair would be performed: unhide-bootmenu-10s
Blockers in case of suggested repair: __________________________________________
GPT detected. Please create a BIOS-Boot partition (>1MB, unformatted filesystem, bios_grub flag). This can be performed via tools such as Gparted. Then try again.
Alternatively, you can retry after activating the [Separate /boot/efi partition:] option.
Advice in case of suggested repair: ____________________________________________
EFI detected. You may want to retry after activating the [Separate /boot/efi partition:] option.
Do you want to continue?
Final advice in case of suggested repair: ______________________________________
Please do not forget to make your BIOS boot on sda (ATA WDC WD6400BPVT-8) disk!
C'est l'extrait suivant qui montre le paramétrage du système UEFI :
efibootmgr -v
BootCurrent: 0002
Timeout: 0 seconds
BootOrder: 0002,0000,0003,0001
Boot0000* Hard Drive BBS(HD,,0x0)
Boot0001 CD/DVD Drive BBS(CDROM,,0x0)
Boot0002* ubuntu HD(1,GPT,d48020af-e73c-4abe-bd9d-fce7c8495fea,0x800,0x100000)/File(FIuntu\shimx64.efi)
Boot0003* UEFI: USB USB Hard Drive PciRoot(0x0)/Pci(0x1d,0x0)/USB(1,0)/USB(4,0)/HD(1,MBR,0x16003110,0x800,0xe6f800)
La ligne "BootCurrent: 0002" indique que le démarrage s'est fait sur l'entrée Boot0002 qui est l'entrée "ubuntu". Pour moi, tout ça est correct. Je crois qu'il va être nécessaire que tu expliques comment tu procèdes précisément pour démarrer sur Ubuntu. Tu as écrit dans le post #1 : "il me faut la clé USB pour que le système démarre" mais je suppose que ce n'est pas suffisant que la LiveUSB soit connectée pour que le démarrage se fasse automatiquement sur Ubuntu sans que tu ne fasses rien. Donne des explications détaillées.
