Recovering grub and solving EFI problems in ubuntu (13.04 - and maybe others) on ASUS N76 laptop.

recover_grub.sh

#http://askubuntu.com/questions/88384/how-can-i-repair-grub-how-to-get-ubuntu-back-after-installing-windows
sudo mount /dev/sdax /mnt  # make sure that sdax is correct!
for i in /sys /proc /run /dev; do sudo mount --bind "$i" "/mnt$i"; done
sudo chroot /mnt
#optional - if you have a separate boot partition
mount /boot
update-grub
grub-install /dev/sda
update-grub # I'm not sure if this is necessary, but it doesn't hurt.


#http://askubuntu.com/questions/187862/after-update-get-error-file-not-found-followed-by-grub-rescue
#recovering efi boot. "normal.mod not found" problem:
#Type ls to get a list of partitions
#Enter set prefix=(hd0,msdos6)/boot/grub [you will almost certainly have to enter a different drive/partition in the brackets, you #may just have to try all of those listed by ls until you find the one that works.
#Type insmod normal
#Type normal and you will get your boot prompt back!