I used boot-repair to first remove any existing grub installation and then ran boot-repair (on the freya live disc) with the SecureBoot option disabled, but EFI enabled and my GRUB was fixed.
I used boot-repair to first remove any existing grub installation and then ran boot-repair (on the freya live disc) with the SecureBoot option disabled, but EFI enabled and my GRUB was fixed.