Hello, I tried the 'famous' set system num serial boot CD found in the topic with my water-damaged intel macbook 2,4. Not working (doesn't boot) but I know there is something inside the dmg, opened it and explored it with FIlebuddy and found a great structure of files . What is your working method ? the 'special' EFI software you say it's needed would be " refit " boot CD ? (http://refit.sourceforge.net/) S.