The workaround didn't help. I finally copied the initrd image for 2.6.17 from another computer, and was able to boot off of it.
Let me know if you'd like me to try booting with various kernel parameters and sending pictures of the screen. -- Mac Mini USB support broken in 2.6.19-6 package https://launchpad.net/bugs/72802 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs