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Problème dual boot win10 & ubuntu


Dam18

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Posté(e)

Bonjour, j'ai deux SSD, un avec windows 10 et l'autre avec ubuntu. Ca faisait des années que je n'utilisais plus ubuntu, j'y suis retourné dessus hier, c'est un vieux ubuntu avec rien d'important dessus et impossible de se connecter à internet. Donc j'ai voulu le mettre à jour en effaçant le disque et en installant la dernière version via une clé usb.
Je suis passé par le terminal de commande windows pour effacer le disque "ubuntu". je ne l'ai pas initialisé, je les laissé vierge.
J'ai éteint/rallumé l'ordi et là impossible de démarrer sur mon windows. Dans le bios si j'essaye de démarrer sur mon disque effacé (anciennement ubuntu) il me ramène au bios, et si j'essaye de démarrer sur mon disque avec windows je tombe sur cette erreur :

Error : no such device : "longue suite de caractère"
Error : Unknown filesysteme
Entering rescue mode...

Depuis mon mcbook j'ai créé une clé usb bootable avec ubuntu dessus et j'ai ensuite installé ubuntu sur mon disque vierge.

Je me retrouve maintenant avec ubuntu qui fonctionne sur mon pc mais toujours le même problème avec windows, impossible de l'ouvrir, ça m'affiche le grub rescue.

Voici le boot-info via ubuntu si jamais :

boot-info-4ppa2088                                              [20260304_1912]

============================== 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 /boot/grub. It also embeds following components:
    
    modules
    ---------------------------------------------------------------------------
    fshelp ext2 part_gpt biosdisk search_fs_uuid
    ---------------------------------------------------------------------------
    
    config script
    ---------------------------------------------------------------------------
    search.fs_uuid c281a45e-a650-4f86-a2c5-eda3ec1ea0da root hd1,gpt1 
    set prefix=($root)'/boot/grub'
    
    ---------------------------------------------------------------------------
 => No boot loader is installed in the MBR of /dev/sdb.
 => Windows is installed in the MBR of /dev/sdc.

sda1: __________________________________________________________________________

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

sda2: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 7/2008: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  Windows 10 or 11
    Boot files:        /Windows/System32/winload.exe

sda3: __________________________________________________________________________

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

sdb1: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu 24.04.4 LTS
    Boot files:        /boot/grub/grub.cfg /etc/fstab /etc/default/grub

sdb2: __________________________________________________________________________

    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

sdb3: __________________________________________________________________________

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

sdb4: __________________________________________________________________________

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

sdc1: __________________________________________________________________________

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


================================ 2 OS detected =================================

OS#1 (linux):   L'OS actuellement utilisé - Ubuntu 24.04.4 LTS on sdb1
OS#2 (windows):   Windows 10 or 11 on sda2

================================ Host/Hardware =================================

CPU architecture: 64-bit
Video: GP107 [GeForce GTX 1050 Ti] HD Graphics 630 from NVIDIA Corporation Intel Corporation
BOOT_IMAGE of the installed session in use:
/boot/vmlinuz-6.17.0-14-generic root=UUID=b9b967f2-6c95-4895-bc4e-31a0d2ea7f49 ro quiet splash vt.handoff=7
df -Th / : /dev/sdb1        ext4    92G    7,0G   80G   9% /

===================================== UEFI =====================================

BIOS/UEFI firmware: 0306(5.12) from American Megatrends Inc.
The firmware is EFI-compatible, and is set in EFI-mode for this installed-session.
SecureBoot disabled (confirmed by mokutil).
BootCurrent: 0000
Timeout: 1 seconds
BootOrder: 0000,0001,0002,0003,0004
Boot0000* Ubuntu	HD(2,GPT,85444a28-590a-4432-be1c-7a590bb10c0c,0xba44800,0x219800)/File(\EFI\UBUNTU\SHIMX64.EFI)
Boot0001* Hard Drive	BBS(HD,,0x0)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
Boot0002* UEFI:CD/DVD Drive	BBS(129,,0x0)
Boot0003* UEFI:Removable Device	BBS(130,,0x0)
Boot0004* UEFI:Network Device	BBS(131,,0x0)


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

Disks info: ____________________________________________________________________

sdb	: is-GPT,	no-BIOSboot,	has---ESP, 	not-usb,	not-mmc, has-os,	no-wind,	2048 sectors * 512 bytes
sdc	: notGPT,	no-BIOSboot,	has-noESP, 	not-usb,	not-mmc, no-os,	no-wind,	2048 sectors * 512 bytes
sda	: notGPT,	no-BIOSboot,	has-noESP, 	not-usb,	not-mmc, has-os,	has-win,	2048 sectors * 512 bytes

Partitions info (1/3): _________________________________________________________

sdb1	: is-os,	64, apt-get,	signed grub-efi ,	grub2,	grub-install,	grubenv-ok,	update-grub,	end-after-100GB
sdb4	: no-os,	64, nopakmgr,	no-docgrub,	nogrub,	nogrubinstall,	no-grubenv,	noupdategrub,	end-after-100GB
sdb2	: no-os,	64, nopakmgr,	no-docgrub,	nogrub,	nogrubinstall,	no-grubenv,	noupdategrub,	end-after-100GB
sdc1	: no-os,	64, nopakmgr,	no-docgrub,	nogrub,	nogrubinstall,	no-grubenv,	noupdategrub,	end-after-100GB
sda2	: is-os,	64, nopakmgr,	no-docgrub,	nogrub,	nogrubinstall,	no-grubenv,	noupdategrub,	end-after-100GB
sda3	: no-os,	64, nopakmgr,	no-docgrub,	nogrub,	nogrubinstall,	no-grubenv,	noupdategrub,	end-after-100GB
sda1	: no-os,	64, nopakmgr,	no-docgrub,	nogrub,	nogrubinstall,	no-grubenv,	noupdategrub,	not-far

Partitions info (2/3): _________________________________________________________

sdb1	: isnotESP,	fstab-has-bad-efi,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot, ext4
sdb4	: isnotESP,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot, ext4
sdb2	: is---ESP,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot, vfat
sdc1	: isnotESP,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot, ntfs
sda2	: isnotESP,	part-has-no-fstab,	no-nt,	haswinload,	no-recov-nor-hid,	no-bmgr,	notwinboot, ntfs
sda3	: isnotESP,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot, ntfs
sda1	: isnotESP,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	bootmgr,	is-winboot, ntfs

Partitions info (3/3): _________________________________________________________

sdb1	: not--sepboot,	with-boot,	fstab-without-boot,	not-sep-usr,	with--usr,	fstab-without-usr,	std-grub.d,	sdb
sdb4	: maybesepboot,	no---boot,	part-has-no-fstab,	not-sep-usr,	no---usr,	part-has-no-fstab,	no--grub.d,	sdb
sdb2	: not--sepboot,	no---boot,	part-has-no-fstab,	not-sep-usr,	no---usr,	part-has-no-fstab,	no--grub.d,	sdb
sdc1	: not--sepboot,	no---boot,	part-has-no-fstab,	not-sep-usr,	no---usr,	part-has-no-fstab,	no--grub.d,	sdc
sda2	: not--sepboot,	no---boot,	part-has-no-fstab,	not-sep-usr,	no---usr,	part-has-no-fstab,	no--grub.d,	sda
sda3	: not--sepboot,	no---boot,	part-has-no-fstab,	not-sep-usr,	no---usr,	part-has-no-fstab,	no--grub.d,	sda
sda1	: not--sepboot,	no---boot,	part-has-no-fstab,	not-sep-usr,	no---usr,	part-has-no-fstab,	no--grub.d,	sda

fdisk -l (filtered): ___________________________________________________________

Disk sda: 223.57 GiB, 240057409536 bytes, 468862128 sectors
Disk identifier: 0xc22bdc5b
     Boot     Start       End   Sectors  Size Id Type
sda1  *         2048    206847    204800  100M  7 HPFS/NTFS/exFAT
sda2          206848 467773186 467566339  223G  7 HPFS/NTFS/exFAT
sda3       467773440 468856831   1083392  529M 27 Hidden NTFS WinRE
Disk sdb: 223.57 GiB, 240057409536 bytes, 468862128 sectors
Disk identifier: 8CE4B321-6EAC-43C6-B4EC-B9817BBB0562
         Start       End   Sectors   Size Type
sdb1       2048 195315711 195313664  93.1G Linux filesystem
sdb2  195315712 197517311   2201600     1G EFI System
sdb3  197517312 213143551  15626240   7.5G Linux swap
sdb4  213143552 468858879 255715328 121.9G Linux filesystem
Disk sdc: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors
Disk identifier: 0x7baefc36
     Boot Start        End    Sectors   Size Id Type
sdc1        2048 1953521663 1953519616 931.5G  7 HPFS/NTFS/exFAT

parted -lm (filtered): _________________________________________________________

sda:240GB:scsi:512:512:msdos:ATA KINGSTON SHSS37A:;
1:1049kB:106MB:105MB:ntfs::boot;
2:106MB:239GB:239GB:ntfs::;
3:240GB:240GB:555MB:ntfs::msftres;
sdb:240GB:scsi:512:512:gpt:ATA CT240BX500SSD1:;
1:1049kB:100GB:100GB:ext4::;
2:100GB:101GB:1127MB:fat32::boot, esp;
3:101GB:109GB:8001MB:linux-swap(v1)::swap;
4:109GB:240GB:131GB:ext4::;
sdc:1000GB:scsi:512:4096:msdos:ATA WDC WD10EZEX-08W:;
1:1049kB:1000GB:1000GB:ntfs::;

blkid (filtered): ______________________________________________________________

NAME   FSTYPE   UUID                                 PARTUUID                             LABEL              PARTLABEL
sda                                                                                                          
├─sda1 ntfs     B27C40217C3FDEB3                     c22bdc5b-01                          Réservé au système 
├─sda2 ntfs     489C478B9C47728C                     c22bdc5b-02                                             
└─sda3 ntfs     9C1029091028EC48                     c22bdc5b-03                                             
sdb                                                                                                          
├─sdb1 ext4     b9b967f2-6c95-4895-bc4e-31a0d2ea7f49 740c6043-38df-4097-abf4-ae7e68c96bbe                    
├─sdb2 vfat     414D-E517                            85444a28-590a-4432-be1c-7a590bb10c0c                    
├─sdb3 swap     cbc00460-5cd1-4633-ad69-a31b238ba6ea d26c1d0c-c5b7-494d-a43c-06e77d6a479b                    
└─sdb4 ext4     b3b655f6-fc18-4722-bd39-cf88ddf746d3 bc209762-261c-45ff-8700-b93e8a64731d                    
sdc                                                                                                          
└─sdc1 ntfs     AAD04F1AD04EEC5F                     7baefc36-01                          Disque dur         
sdd                                                                                                          

Mount points (filtered): _______________________________________________________

                        Avail Use% Mounted on
/dev/sda1               70.3M  30% /mnt/boot-sav/sda1
/dev/sda2               19.2G  91% /mnt/boot-sav/sda2
/dev/sda3               82.6M  84% /mnt/boot-sav/sda3
/dev/sdb1               79.5G   8% /
/dev/sdb4                113G   0% /home
/dev/sdc1              857.2G   8% /mnt/boot-sav/sdc1
efivarfs                47.4K  59% /sys/firmware/efi/efivars

Mount options (filtered): ______________________________________________________

/dev/sda1              fuseblk         rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
/dev/sda2              fuseblk         rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
/dev/sda3              fuseblk         rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
/dev/sdb1              ext4            rw,relatime
/dev/sdb4              ext4            rw,relatime
/dev/sdc1              fuseblk         rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096

====================== sdb1/boot/grub/grub.cfg (filtered) ======================

Ubuntu   b9b967f2-6c95-4895-bc4e-31a0d2ea7f49
### END /etc/grub.d/30_os-prober ###
UEFI Firmware Settings   uefi-firmware
### END /etc/grub.d/30_uefi-firmware ###

========================== sdb1/etc/fstab (filtered) ===========================

# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sdb1 during curtin installation
/dev/disk/by-uuid/b9b967f2-6c95-4895-bc4e-31a0d2ea7f49 / ext4 defaults 0 1
# /boot/efi was on /dev/sdb2 during curtin installation
/dev/disk/by-uuid/414D-E517 /boot/efi vfat defaults 0 1
/dev/disk/by-uuid/cbc00460-5cd1-4633-ad69-a31b238ba6ea none swap sw 0 0
# /home was on /dev/sdb4 during curtin installation
/dev/disk/by-uuid/b3b655f6-fc18-4722-bd39-cf88ddf746d3 /home ext4 defaults 0 1

======================= sdb1/etc/default/grub (filtered) =======================

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`( . /etc/os-release; echo ${NAME:-Ubuntu} ) 2>/dev/null || echo Ubuntu`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

==================== sdb1: Location of files loaded by Grub ====================

           GiB - GB             File                                 Fragment(s)
  52,138099670 = 55,982858240   boot/grub/grub.cfg                             1
  47,477500916 = 50,978578432   boot/vmlinuz                                   1
  47,477500916 = 50,978578432   boot/vmlinuz-6.17.0-14-generic                 1
  47,477500916 = 50,978578432   boot/vmlinuz.old                               1
  52,300254822 = 56,156971008   boot/initrd.img                                1
  52,300254822 = 56,156971008   boot/initrd.img-6.17.0-14-generic              1
  52,300254822 = 56,156971008   boot/initrd.img.old                            1

===================== sdb1: ls -l /etc/grub.d/ (filtered) ======================

-rwxr-xr-x 1 root root 18133 Mar 17  2025 10_linux
-rwxr-xr-x 1 root root 43202 Mar 17  2025 10_linux_zfs
-rwxr-xr-x 1 root root 14513 Mar 17  2025 20_linux_xen
-rwxr-xr-x 1 root root   786 Mar 17  2025 25_bli
-rwxr-xr-x 1 root root 13120 Mar 17  2025 30_os-prober
-rwxr-xr-x 1 root root  1174 Mar 17  2025 30_uefi-firmware
-rwxr-xr-x 1 root root   722 Nov 30 14:12 35_fwupd
-rwxr-xr-x 1 root root   214 Mar 17  2025 40_custom
-rwxr-xr-x 1 root root   215 Mar 17  2025 41_custom

===================== sdb2/efi/ubuntu/grub.cfg (filtered) ======================

search.fs_uuid b9b967f2-6c95-4895-bc4e-31a0d2ea7f49 root hd1,gpt1 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg



Suggested repair: ______________________________________________________________

The default repair of the Boot-Repair utility would purge (in order to fix packages) and reinstall the grub2 of
sdb1 into the MBR of sdb.
Grub-efi would not be selected by default because legacy Windows detected.
Additional repair would be performed: unhide-bootmenu-10s win-legacy-basic-fix

Blockers in case of suggested repair: __________________________________________

LegacyWindows detected. Please enable BIOS-compatibility/CSM/Legacy mode in your UEFI firmware, and use this software from a live-CD (or live-USB). 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.

Confirmation request before suggested repair: __________________________________

LegacyWindows detected. The boot of your PC is in EFI mode. You may want to retry after changing it to BIOS-compatibility/CSM/Legacy mode.
Are you sure you want to continue anyway?

Final advice in case of suggested repair: ______________________________________

Please do not forget to make your BIOS boot on sdb (ATA CT240BX500SSD1) disk!
The boot of your PC is in UEFI mode. You may want to retry after changing it to BIOS-compatibility/CSM/Legacy mode.

Si quelqu'un peut m'aider à refaire fonctionner windows par moi même, si c'est possible. Sinon je j'appellerais un dépanneur. Merci

Posté(e) (modifié)

Bonjour,

En passant à travers ton post en vitesse, je relève une chose pas normale : ton Disque Windows est en MS-DOS, donc MBR, et Linux est en GPT, donc en UEFI. 

Capturedecran2026-03-05a12_01_54.jpg.2d4742a4be95474d72aa797c8203a7eb.jpg

Cependant, tu as quand même une drôle d'installation avec tes partitions.

Modifié par Tulburite
Posté(e)

Merci pour ton retour. Au final j’ai effacé mes disques complètement et je réinstalle à neuf mes systèmes d’exploitation. J’ai sauvegardé mes fichiers importants sur mon 3e disque qui me sert de stockage et tant pis pour mes applications et configurations, je prendrai le temps de tout reconfigurer.

 

C’était impossible de boot Windows en legacy via le bios, donc impossible d’aller dessus réparer et changer en UEFI.

j’ai boot une clé Windows pour essayer de réparer via la clé… mais impossible.

 

Peut-être qu’en passant par ubuntu j’aurais pu convertir de MBR en GPT… je sais pas si sa aurait pu fonctionner…

 

Bon pas grave je reste tout, ça repart à neuf. Merci quand même 

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