I was trying to rescue grub on linux I was able to login to the os following this tutorial
I need to upgrade grub to fix the problem However, when I run
grub-install , I get an error.
$ grub-install /dev/sda
grub-install: error: cannot find EFI directory.
My file system contains
sda5 , and
sda6 for the EFI system, Linux swap, and Linux file system respectively.
I'm not really experienced with mount commands
When you run grub-install by default it assumes the EFI system is mounted as /boot/efi
It depends on your distribution where the efi system is mounted and on some distributions it's not mounted after boot
First check if /boot/efi is mounted with
mount | grep /boot/efi
If that doesn't work first try the following to see if it is mounted elsewhere.
mount | grep /dev/[efi device]
If neither of those work do.
mount /dev/[efi device] /mnt
Now run away
grub-install --efi-directory=[efi dir]
grub-mkconfig -o /boot/grub/grub.cfg
where [efi dir] is either /boot/efi or /mnt and [efi device] is the device with the EFI system partition. If you don't know use the command
lsblk -o NAME,PARTTYPE,MOUNTPOINT | grep -i "C12A7328-F81F-11D2-BA4B-00A0C93EC93B"