In FC2 on an Asus P4S533-MX system *without* SATA, we get VFS: Mounted root (ext2 filesystem). VFS: Cannot open root device "LABEL=/" or unknown-block(0,0) Please append a correct "root=" boot option Kernel panic - not syncing : VFS: Unable to mount root fs on unknown-block(0,0) followed by an infinite number of atkbd.c: Spurious ACK on isa0060/seri0. Some program, like XFree86, might be trying access hardware directly. The machine isn't SMP, but oddly, if we boot the SMP kernel, we get the panic message but _not_ the atkbd.c errors. Also very disturbing: this happens with the newest kernel-2.6.9-1.6_FC2, but kernel-2.6.9-1.3_FC2 works fine. I added this to similar FC3 bug <https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=140065>; I can file a new entry if that would be more helpful. -- Matthew Miller mattdm@xxxxxxxxxx <http://www.mattdm.org/> Boston University Linux ------> <http://linux.bu.edu/>