The 64 bit EFI build of grub is being installed, but it seems to have become confused and thinks it is the bios version:
grub-install: error: /usr/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory.
The 64 bit EFI build of grub is being installed, but it seems to have become confused and thinks it is the bios version:
grub-install: error: /usr/lib/ grub/i386- pc/modinfo. sh doesn't exist. Please specify --target or --directory.