I'm trying to get my HTPC I've built to run ubuntu. For some reason, when I try to boot from USB I get this weird graphical error. Tweaking the bios a little more tells me that it can't find anything to boot off from my USB drive. I've followed the instructions on ubuntu.com (for mac) when you download an ISO.
Here's a video of what I'm doing: http://vimeo.com/29318791
I now have ubuntu booting from a harddrive after a CD install. However, now I get dropped into initramfs, and get lots of these:
ata2: COMRESET failed (errno=16) what now?