Je colle ton Boot-info :
boot-info-4ppa125 [20210116_1608]
============================== Boot Info Summary ===============================
=> Grub2 (v2.00) is installed in the MBR of /dev/sda and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for (,msdos1)/boot/grub. It also embeds following components:
modules
---------------------------------------------------------------------------
fshelp ext2 part_msdos biosdisk
---------------------------------------------------------------------------
sda1: __________________________________________________________________________
File system: ext4
Boot sector type: Grub2 (v1.99-2.00)
Boot sector info: Grub2 (v2.00) is installed in the boot sector of sda1
and looks at sector 50802048 of the same hard drive
for core.img. core.img is at this location and looks
for (,msdos1)/boot/grub. It also embeds following
components:
modules
-------------------------------------------------------
fshelp ext2 part_msdos biosdisk
-------------------------------------------------------
Operating System: Ubuntu 20.04.1 LTS
Boot files: /boot/grub/grub.cfg /etc/fstab /etc/default/grub
/boot/grub/i386-pc/core.img
sda2: __________________________________________________________________________
File system: swap
Boot sector type: -
Boot sector info:
sda3: __________________________________________________________________________
File system: Extended Partition
Boot sector type: -
Boot sector info:
sda5: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System:
Boot files:
================================ 1 OS detected =================================
OS#1: L'OS actuellement utilisé - Ubuntu 20.04.1 LTS CurrentSession on sda1
============================ Architecture/Host Info ============================
CPU architecture: 64-bit
BOOT_IMAGE of the installed session in use:
/boot/vmlinuz-5.8.0-38-generic root=UUID=a92ee263-b286-4c9a-9eff-23be2c188a27 ro quiet splash vt.handoff=7
===================================== UEFI =====================================
This installed-session is not in EFI-mode.
EFI in dmesg.
[ 0.002524] ACPI: UEFI 0x00000000DAFDE000 00003E (v01 LENOVO TP-G2 00002650 PTL 00000002)
[ 0.002527] ACPI: UEFI 0x00000000DAFDD000 000042 (v01 PTL COMBUF 00000001 PTL 00000001)
[ 0.002541] ACPI: UEFI 0x00000000DAFD8000 0002A6 (v01 LENOVO TP-G2 00002650 PTL 00000002)
============================= Drive/Partition Info =============================
Disks info: ____________________________________________________________________
sda : notGPT, no-BIOSboot, has-noESP, not-usb, not-mmc, has-os, 2048 sectors * 512 bytes
Partitions info (1/3): _________________________________________________________
sda1 : is-os, 64, apt-get, grub-pc , grub2, grub-install, grubenv-ok, update-grub, not-far
sda5 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, farbios
Partitions info (2/3): _________________________________________________________
sda1 : isnotESP, fstab-without-efi, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
sda5 : isnotESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
Partitions info (3/3): _________________________________________________________
sda1 : not-sepboot, with-boot, fstab-without-boot, not-sep-usr, with--usr, fstab-without-usr, std-grub.d, sda
sda5 : maybesepboot, no-boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, std-grub.d, sda
fdisk -l (filtered): ___________________________________________________________
Disk sda: 223.58 GiB, 240057409536 bytes, 468862128 sectors
Disk identifier: 0x888ef86e
Boot Start End Sectors Size Id Type
sda1 * 2048 124999679 124997632 59.6G 83 Linux
sda2 124999680 156250111 31250432 14.9G 82 Linux swap / Solaris
sda3 156252158 468861534 312609377 149.1G 5 Extended
sda5 156252160 468861534 312609375 149.1G 83 Linux
parted -lm (filtered): _________________________________________________________
sda:240GB:scsi:512:512:msdos:ATA INTEL SSDSC2BW24:;
1:1049kB:64.0GB:64.0GB:ext4::boot;
2:64.0GB:80.0GB:16.0GB:linux-swap(v1)::;
3:80.0GB:240GB:160GB:::;
5:80.0GB:240GB:160GB:ext4::;
blkid (filtered): ______________________________________________________________
NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda
├─sda1 ext4 a92ee263-b286-4c9a-9eff-23be2c188a27 888ef86e-01
├─sda2 swap 3ddcedd7-af2c-4147-81c7-b68a36028c7c 888ef86e-02
├─sda3 888ef86e-03
└─sda5 ext4 91773f66-df79-48e4-b694-ad9039d524cf 888ef86e-05
df (filtered): _________________________________________________________________
Avail Use% Mounted on
sda1 49.8G 10% /
sda5 137.3G 1% /home
Mount options: __________________________________________________________________
sda1 rw,relatime,errors=remount-ro
sda5 rw,relatime
====================== sda1/boot/grub/grub.cfg (filtered) ======================
Ubuntu a92ee263-b286-4c9a-9eff-23be2c188a27
Ubuntu, avec Linux 5.8.0-38-generic a92ee263-b286-4c9a-9eff-23be2c188a27
Ubuntu, avec Linux 5.4.0-42-generic a92ee263-b286-4c9a-9eff-23be2c188a27
### END /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_uefi-firmware ###
========================== sda1/etc/fstab (filtered) ===========================
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda1 during installation
UUID=a92ee263-b286-4c9a-9eff-23be2c188a27 / ext4 errors=remount-ro 0 1
# /home was on /dev/sda5 during installation
UUID=91773f66-df79-48e4-b694-ad9039d524cf /home ext4 defaults 0 2
# swap was on /dev/sda2 during installation
UUID=3ddcedd7-af2c-4147-81c7-b68a36028c7c none swap sw 0 0
======================= sda1/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=""
==================== sda1: Location of files loaded by Grub ====================
GiB - GB File Fragment(s)
52,249229431 = 56,102182912 boot/grub/grub.cfg 2
24,224327087 = 26,010673152 boot/grub/i386-pc/core.img 1
53,236587524 = 57,162350592 boot/vmlinuz 1
2,211910248 = 2,375020544 boot/vmlinuz-5.4.0-42-generic 2
53,236587524 = 57,162350592 boot/vmlinuz-5.8.0-38-generic 1
2,211910248 = 2,375020544 boot/vmlinuz.old 2
53,513034821 = 57,459183616 boot/initrd.img 2
53,511871338 = 57,457934336 boot/initrd.img-5.4.0-42-generic 2
53,513034821 = 57,459183616 boot/initrd.img-5.8.0-38-generic 2
53,511871338 = 57,457934336 boot/initrd.img.old 2
===================== sda1: ls -l /etc/grub.d/ (filtered) ======================
-rwxr-xr-x 1 root root 17622 nov. 13 00:15 10_linux
-rwxr-xr-x 1 root root 42359 nov. 13 00:15 10_linux_zfs
-rwxr-xr-x 1 root root 12894 juil. 31 02:34 20_linux_xen
-rwxr-xr-x 1 root root 12059 juil. 31 02:34 30_os-prober
-rwxr-xr-x 1 root root 1424 juil. 31 02:34 30_uefi-firmware
-rwxr-xr-x 1 root root 214 juil. 31 02:34 40_custom
-rwxr-xr-x 1 root root 216 juil. 31 02:34 41_custom
Suggested repair: ______________________________________________________________
The default repair of the Boot-Repair utility would reinstall the grub2 of
sda1 into the MBR of sda.
Additional repair would be performed: unhide-bootmenu-10s
C'est bien cohérent avec ce qui est indiqué par Gparted dans ta première image.