Did you include ide support? It's possible that the bios/chipset has an ide legacy mode, and/or the ide driver is claiming the chip. Try root=/dev/hda4 to (dis)prove it.
See what bios settings are available regarding such. /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
