Not that familiar with Macs, but believe you need something like the rEFIt boot manager to get around their EFI implentation.Hi nightflier - I'm actually working with a hackintosh (Gateway m685-E). I previously had dual boot up and running with OSX and Ubuntu but I think I did a MBR hack instead of using GPT (mac won't normally boot from MBR).
I'm working with Vector Linux Standard Gold 7 and having slightly more success. Having issues getting LILO installed (I install VL and ask for me to choose a bootloader at the end). GRUB won't work for me because it only lets me attempt to install to MBR (which doesn't exist for me) and LILO always does nothing when I select "bootsector" method and click next. The window just freezes. VL itself gets installed but can't install a bootloader. I'm going to have to try and manually install a bootloader (using option "none").
I'll post my results if I can get this figured out.
As of right now, it seems the issue is that VL Light doesn't properly support GPT in order to run the setup against it. Parted can be used to create the partitions but VL light setup never sees them.
Even in VL Standard Gold there are some qwerks. If I try to do any gparted modifications to the partitions, the VL setup will never the ext2 / swap partitions - even if I just launch gparted and then quit. If I launch setup and select "use existing partitions without running gparted", the setup sees my ext2 partition and I can do the installation. Strange