Arch Linux

senaex

Member

Registered: 2021-08-18

Posts: 7

Can't get rid of grub rescue: unknown filesystem

I encountered grub rescue problem many times before, but I could fix them every time by either running "update-grub", "grub-install" or by completely reinstalling it.
This time, I tried to move arch from on ssd onto another nvme ssd, and windows 11 from another ssd to the same nvme ssd.
And I can boot everything just fine, but I always need to go through grub rescue with ls, set prefix... Set root... And so on.

As I mentioned above, all the normal solutions don't work for me, so all ideas and tipps are welcome.

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,292

Re: Can't get rid of grub rescue: unknown filesystem

Generally if you swap around HW, you will need to define, where the configuration GRUB is looking at lies (... normally /boot/grub/grub.cfg, where GRUB looks for said configuration (defined during grub-install time default /boot/grub), where the GRUB you're booting is located (depends on your exact install command) and whether the BIOS/UEFI actually boots that exact GRUB you installed (check the boot menu whether you're potentially still loading an older grub).

To that effect, what's your exact setup currently? post with all the partitions mounted like you think they are correct in code tags

lsblk -f
ls -l /boot
cat /boot/grub/grub.cfg
efibootmgr -uv

as well as the exact commands you are using to reinstall GRUB that leads to "normal solutions don't work for me"