A quick google shows that you have a JMicron controller. There is a critical bug fix in 2.6.20-13. Get it from http://cdimage.ubuntu.com /daily-live/current/
** Changed in: linux-source-2.6.20 (Ubuntu) Assignee: (unassigned) => Tim Gardner Status: Unconfirmed => Needs Info -- Cant boot with kernel 2.6.20-12 https://launchpad.net/bugs/95612 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs