| From: William Park via talk <talk@gtalug.org> | 4. If you plan to move the harddisk to another machine (like I do), then | use MBR. Problem with EFI is that it writes the boot entry in BIOS. | Well, on a new motherboard, boot entry is not there, so you can't boot. | You have to dig into EFI shell, and manually select your .efi. My working hypothesis is that EFI is the future so I use it when I can. I am frequently disappointed to discover how clunky an implementation's user interface is. If I remember correctly what I was told, the EFI shell cannot be delivered with machines that have Secure Boot. Or maybe it is with machines that have the Windows Logo, at least recently. So I don't think that current machines come with an EFI shell. I don't know if an EFI shell is generic -- would work on all machines with the same architecture.