Thanks, most likely due to Kyle's patch for disabling msi by default. It can be enabled with pci=msi if anyone needs it.
** Changed in: linux-source-2.6.20 (Ubuntu) Assignee: Ubuntu Kernel Team => Kyle McMartin Status: Confirmed => Fix Released -- Linux won't recognize had drive on Dell Inspiron 1501 https://launchpad.net/bugs/74830 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs