I have "installed" Archboot on my macbook air, and I am getting screen problems after it loads UDEV, it is last thing I can read. Basically I am following this instructions. But then I got error that when installing grub legacy. Something about that it has no support of gpt. And I cannot find anything about bios-compatibility. P.S. it only took one try too install it on macbook 6,2 and few dozens in macbook air without results.