Je colle ton Boot-info :
boot-info-4ppa125 [20210131_1016]
============================== Boot Info Summary ===============================
=> No boot loader is installed in the MBR of /dev/sda.
=> No boot loader is installed in the MBR of /dev/sdb.
=> Syslinux MBR (5.00 and higher) is installed in the MBR of /dev/sdc.
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:
sdb1: __________________________________________________________________________
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/Boot/bootx64.efi /efi/Boot/fbx64.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
/efi/Microsoft/Boot/bootmgr.efi
/efi/Microsoft/Boot/memtest.efi
sdb2: __________________________________________________________________________
File system:
Boot sector type: -
Boot sector info:
sdb3: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 8/2012: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows 8 or 10
Boot files: /Windows/System32/winload.exe
sdb4: __________________________________________________________________________
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:
sdb5: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 20.04.1 LTS
Boot files: /boot/grub/grub.cfg /etc/fstab /etc/default/grub
sdb6: __________________________________________________________________________
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:
sdc1: __________________________________________________________________________
File system: vfat
Boot sector type: SYSLINUX 6.04
Boot sector info: Syslinux looks at sector 32784 of /dev/sdc1 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
================================ 2 OS detected =================================
OS#1: Ubuntu 20.04.1 LTS on sdb5
OS#2: Windows 8 or 10 on sdb3
============================ Architecture/Host Info ============================
CPU architecture: 64-bit
Live-session OS is Ubuntu 64-bit (Ubuntu 20.04.1 LTS, focal, x86_64)
===================================== UEFI =====================================
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot disabled.
efibootmgr -v
BootCurrent: 0002
Timeout: 1 seconds
BootOrder: 0001,0000,0002
Boot0000* Windows Boot Manager HD(1,GPT,fd832255-3f9a-4565-b936-0586cb0f3d17,0x800,0x82000)/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,fd832255-3f9a-4565-b936-0586cb0f3d17,0x800,0x82000)/File(\EFI\UBUNTU\SHIMX64.EFI)
Boot0002* UEFI: General USB Flash Disk 0.00, Partition 1 PciRoot(0x0)/Pci(0x14,0x0)/USB(1,0)/HD(1,MBR,0xb1fe6,0x800,0xeff800)..BO
78415fb8fb9b909f8029858113f1335f sdb1/Boot/bootx64.efi
2895d47544fd587b26c7e29be1295c27 sdb1/Boot/fbx64.efi
dc3c47be2f78a78e5e57d097ae6c5c84 sdb1/Boot/mmx64.efi
637fa7fabc8a2f70312edf2f15e275ff sdb1/ubuntu/grubx64.efi
dc3c47be2f78a78e5e57d097ae6c5c84 sdb1/ubuntu/mmx64.efi
78415fb8fb9b909f8029858113f1335f sdb1/ubuntu/shimx64.efi
3c080490d0eb8fdb738f298c3e44b3e0 sdb1/Microsoft/Boot/bootmgfw.efi
da7c9088c9d0bff4ac469abdfc8f540e sdb1/Microsoft/Boot/bootmgr.efi
============================= Drive/Partition Info =============================
Disks info: ____________________________________________________________________
sda : is-GPT, no-BIOSboot, has-noESP, not-usb, not-mmc, no-os, 2048 sectors * 512 bytes
sdb : is-GPT, no-BIOSboot, has---ESP, not-usb, not-mmc, has-os, 2048 sectors * 512 bytes
Partitions info (1/3): _________________________________________________________
sda1 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, farbios
sdb1 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
sdb3 : is-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
sdb4 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
sdb5 : is-os, 64, apt-get, signed grub-pc grub-efi , grub2, grub-install, grubenv-ok, update-grub, farbios
sdb6 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, farbios
Partitions info (2/3): _________________________________________________________
sda1 : isnotESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
sdb1 : is---ESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
sdb3 : isnotESP, part-has-no-fstab, no-nt, haswinload, no-recov-nor-hid, no-bmgr, notwinboot
sdb4 : isnotESP, part-has-no-fstab, no-nt, no-winload, recovery-or-hidden, no-bmgr, notwinboot
sdb5 : isnotESP, fstab-has-goodEFI, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
sdb6 : isnotESP, part-has-no-fstab, no-nt, no-winload, recovery-or-hidden, no-bmgr, notwinboot
Partitions info (3/3): _________________________________________________________
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-boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, std-grub.d, sdb
sdb3 : not-sepboot, no-boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, std-grub.d, sdb
sdb4 : not-sepboot, no-boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, std-grub.d, sdb
sdb5 : not-sepboot, with-boot, fstab-without-boot, not-sep-usr, with--usr, fstab-without-usr, std-grub.d, sdb
sdb6 : not-sepboot, no-boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, std-grub.d, sdb
fdisk -l (filtered): ___________________________________________________________
Disk sda: 931.53 GiB, 1000204886016 bytes, 1953525168 sectors
Disk identifier: E24EEE5E-D6EB-4418-857D-5CC6A2D72609
Start End Sectors Size Type
sda1 2048 1953523711 1953521664 931.5G Microsoft basic data
Disk sdb: 119.25 GiB, 128035676160 bytes, 250069680 sectors
Disk identifier: 3BCBA88B-997A-48EC-B1A7-DD4666238AE9
Start End Sectors Size Type
sdb1 2048 534527 532480 260M EFI System
sdb2 534528 567295 32768 16M Microsoft reserved
sdb3 567296 192412940 191845645 91.5G Microsoft basic data
sdb4 192413696 193492991 1079296 527M Windows recovery environment
sdb5 193492992 248430591 54937600 26.2G Linux filesystem
sdb6 248430592 250068991 1638400 800M Windows recovery environment
Disk sdc: 7.51 GiB, 8053063680 bytes, 15728640 sectors
Disk identifier: 0x000b1fe6
Boot Start End Sectors Size Id Type
sdc1 * 2048 15728639 15726592 7.5G c W95 FAT32 (LBA)
parted -lm (filtered): _________________________________________________________
sda:1000GB:scsi:512:4096:gpt:ATA HGST HTS541010B7:;
1:1049kB:1000GB:1000GB:ntfs::msftdata;
sdb:128GB:scsi:512:4096:gpt:ATA HFS128G32TND-N21:;
1:1049kB:274MB:273MB:fat32:EFI system partition:boot, esp;
2:274MB:290MB:16.8MB::Microsoft reserved partition:msftres;
3:290MB:98.5GB:98.2GB:ntfs:Basic data partition:msftdata;
4:98.5GB:99.1GB:553MB:ntfs::hidden, diag;
5:99.1GB:127GB:28.1GB:ext4::;
6:127GB:128GB:839MB:ntfs:Basic data partition:hidden, diag;
sdc:8053MB:scsi:512:512:msdos:General USB Flash Disk:;
1:1049kB:8053MB:8052MB:fat32::boot, lba;
blkid (filtered): ______________________________________________________________
NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda
└─sda1 ntfs 10FA7FF6FA7FD686 22864880-ab05-47c4-bf48-623d661baf59 DATA Basic data partition
sdb
├─sdb1 vfat 206E-5210 fd832255-3f9a-4565-b936-0586cb0f3d17 SYSTEM EFI system partition
├─sdb2 77a1a2a6-d30a-48a6-8698-c70b03b58844 Microsoft reserved partition
├─sdb3 ntfs 529E71179E70F537 cafe8619-7563-432c-9a1a-9212f9d0a316 OS Basic data partition
├─sdb4 ntfs 728222288221F0F1 238a3393-9c29-47cd-baf1-121e5d706a62
├─sdb5 ext4 c97c936f-c7b9-4561-a52f-6a42dcfc8146 3404dc86-95eb-4c52-b8d1-8efcba9f121f
└─sdb6 ntfs A2D013EED013C805 eb9dc8ac-cabf-4216-ba0b-a789da4d98eb RECOVERY Basic data partition
sdc
└─sdc1 vfat 188C-EAAB 000b1fe6-01 UBUNTU 20_0
df (filtered): _________________________________________________________________
Avail Use% Mounted on
sda1 658.3G 29% /mnt/boot-sav/sda1
sdb1 222.8M 13% /mnt/boot-sav/sdb1
sdb3 30G 67% /mnt/boot-sav/sdb3
sdb4 89.1M 83% /mnt/boot-sav/sdb4
sdb5 18.1G 24% /mnt/boot-sav/sdb5
sdb6 357.9M 55% /mnt/boot-sav/sdb6
sdc1 4.9G 35% /cdrom
Mount options: __________________________________________________________________
sda1 rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
sdb1 rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
sdb3 rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
sdb4 rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
sdb5 rw,relatime
sdb6 rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
sdc1 ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
===================== sdb1/efi/ubuntu/grub.cfg (filtered) ======================
search.fs_uuid c97c936f-c7b9-4561-a52f-6a42dcfc8146 root hd1,gpt5
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
====================== sdb5/boot/grub/grub.cfg (filtered) ======================
Ubuntu c97c936f-c7b9-4561-a52f-6a42dcfc8146
Ubuntu, avec Linux 5.4.0-42-generic c97c936f-c7b9-4561-a52f-6a42dcfc8146
Windows Boot Manager (sur sdb1) osprober-efi-206E-5210
### END /etc/grub.d/30_os-prober ###
UEFI Firmware Settings uefi-firmware
### END /etc/grub.d/30_uefi-firmware ###
========================== sdb5/etc/fstab (filtered) ===========================
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sdb5 during installation
UUID=c97c936f-c7b9-4561-a52f-6a42dcfc8146 / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sdb1 during installation
UUID=206E-5210 /boot/efi vfat umask=0077 0 1
/swapfile none swap sw 0 0
======================= sdb5/etc/default/grub (filtered) =======================
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=""
==================== sdb5: Location of files loaded by Grub ====================
GiB - GB File Fragment(s)
100,593547821 = 108,011499520 boot/grub/grub.cfg 2
96,306125641 = 103,407915008 boot/vmlinuz 2
96,306125641 = 103,407915008 boot/vmlinuz-5.4.0-42-generic 2
113,342018127 = 121,700065280 boot/initrd.img 1
113,342018127 = 121,700065280 boot/initrd.img-5.4.0-42-generic 1
113,342018127 = 121,700065280 boot/initrd.img.old 1
===================== sdb5: ls -l /etc/grub.d/ (filtered) ======================
-rwxr-xr-x 1 root root 17622 janv. 13 14:12 10_linux
-rwxr-xr-x 1 root root 42359 janv. 13 14:12 10_linux_zfs
-rwxr-xr-x 1 root root 12894 juil. 31 2020 20_linux_xen
-rwxr-xr-x 1 root root 12059 juil. 31 2020 30_os-prober
-rwxr-xr-x 1 root root 1424 juil. 31 2020 30_uefi-firmware
-rwxr-xr-x 1 root root 214 juil. 31 2020 40_custom
-rwxr-xr-x 1 root root 216 juil. 31 2020 41_custom
====================== sdc1/boot/grub/grub.cfg (filtered) ======================
Ubuntu
Ubuntu (safe graphics)
OEM install (for manufacturers)
Boot from next volume
UEFI Firmware Settings
========================= sdc1/syslinux.cfg (filtered) =========================
DEFAULT loadconfig
LABEL loadconfig
CONFIG /isolinux/isolinux.cfg
APPEND /isolinux/
==================== sdc1: Location of files loaded by Grub ====================
GiB - GB File Fragment(s)
?? = ?? boot/grub/grub.cfg 1
================== sdc1: Location of files loaded by Syslinux ==================
GiB - GB File Fragment(s)
?? = ?? syslinux.cfg 1
?? = ?? ldlinux.sys 1
=============================== StdErr Messages ================================
File descriptor 63 (pipe:[113031]) leaked on lvs invocation. Parent PID 8129: /bin/bash
Suggested repair: ______________________________________________________________
The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of
sdb5,
using the following options: sdb1/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s win-legacy-basic-fix use-standard-efi-file
Final advice in case of suggested repair: ______________________________________
Please do not forget to make your UEFI firmware boot on the Ubuntu 20.04.1 LTS entry (sdb1/efi/****/shim****.efi (**** will be updated in the final message) file) !
If your computer reboots directly into Windows, try to change the boot order in your UEFI firmware.
If your UEFI firmware 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\****\shim****.efi (**** will be updated in the final message)
Tout semble parfait là-dedans.
Peux-tu confirmer que ce que tu veux, c'est faire une installation toute neuve de Ubuntu 20.04.1 à la place de ton Ubuntu 20.04.1 qui se trouve dans sdb5 ?