Arch-grub

Used when the grub of arch was broken, I don't know why so I had this when it broke. Since then, I changed distro, I don't know if I have will have this issue ever again even if I decide to go back to arch but I still prefer to have it. Use these commands when in arch install.

You will maybe need to find the correct drive for your linux install, but I don't remember the command to check the drives, will maybe update if I have to redo it

Step

Have at hand the arch iso in a usb drive (using balena etcher or other usb flasher but I recommend ventoy).

Load your keyboard layout (by default it is the us layout so maybe you won't have to change it)

loadkeys be-latin1

Mount your root drive

mount /dev/sda2 /mnt

Go into your drive

arch-chroot /mnt

Mount your efi

mount /dev/sda1 /boot/efi

Repair grub

grub-mkconfig -o /boot/grub/grub.cfg

exit

Unmount

umount -l /mnt

Note for myself

Use React page to use a select input for the keyboard selection