Prepare
-
sudo mount /dev/sd?? /mnt - choose the correct
drive
-
for i in /dev /proc /sys; do sudo mount --bind $i /mnt$i; done
Boot stuff
-
Check
/mnt/boot/grub has a bunch of
.mod files and
grub.cfg
- If not then mount it
-
sudo mount /dev/sd?? /mnt/boot (find the
correct boot partition)
New root
sudo chroot /mnt-
Check
/boot/grub has a bunch of
.mod files and
grub.cfg
Inside the chroot
-
update-grub rebuilds
/boot/grub/grub.cfg
exit
Clean-up
-
for i in /dev /proc /sys; do sudo umount /mnt$i; done
-
umount /mnt/boot - only if you mounted it
separately earlier
umount /mnt