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.es

GNU+Linux command memo

Convert system from BIOS boot to UEFI

Prendre un système qui a été installé sur un ordinateur en mode BIOS et le copier sur un ordi en mode UEFI

Add to fstab the line corresponding to the EFI partition.

UUID=E7XX-23XX /boot/efi       vfat    umask=0077      0       1

Be sure to set the correct UUID.

Create the /boot/efi folder with the correct rights :

# mkdir /boot/efi
# chmod 775 /boot/efi

Mount the corresponding partition : mount -a (as our fstab is up to date).

Get the right grub for UEFI :

# apt remove grub-pc grub-common
# apt install grub-efi-amd64

Reinstall grub

# grub-install /dev/sdx (remplacer le x en fonction de la machine ou on est)
# update grub

Reboot the system.

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