I had severe difficulty getting Ubuntu to appear as a bootable partition when installed from a USB stick. Don't install from stick, install from a disc. Whateve

I had severe difficulty getting Ubuntu to appear as a bootable partition when installed from a USB stick. Don't install from stick, install from a disc. Whatever it did with EFI didn't work right, there were partitions on my hard drive that Mac OS X wouldn't touch, it was a mess. I had to repartition and reformat my HD and restore from Time Machine.