Sadly I do not have a Mac but you may want to try the solution based on BootCamp in the Fedora Wiki:
http://fedoraproject.org/wiki/FedoraOnMactel -- Grub install fails on intel macs. https://launchpad.net/bugs/62386 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
