I'm working on setting up my MacBook to duel boot OSX and Ultimate Edition. I have repartitioned the drive so OSX has half the drive and Ultimate Edition could take second half. I use Refit to handle the selection between the two during boot. So far I have been able to boot off the CD and use it live off the CD so I know that it works well on this computer. I then installed in allowing it to use all the free space on the drive. The problem is that now it will not boot Linux. During boot I get the Grub menu and then get an error with a kernel panic about not being able to mount file system. I'm including a screen shot of the error. I would appreciate any help. Thanks!