At the risk of going off topic, when installing on an EFI mac, shouldn't grub-efi be installed to the EFI system partition, and there should not be a grub bios boot partition at all?
At the risk of going off topic, when installing on an EFI mac, shouldn't grub-efi be installed to the EFI system partition, and there should not be a grub bios boot partition at all?