Similar to the thread entitled "Kernel panic after yum update" I get the following messages when trying to boot the kernel from the kernel-2.6.10-1.760_FC3smp.i686.rpm package: ... Red Hat nash version 4.1.18 starting Mounted /proc filesystem Creating /dev Starting udev Loading scsi_mod.ko module SCSI subsystem initialised Loading sd_mod.ko module Loading aic7xxx.ko module Loading jdb.ko module Loading ext3.ko module Creating root device mkrootdev: label / not found Mounting root filesystem mount: error 2 mounting ext3 mount: error 2 mounting none Switching to new root switchroot: mount failed: 22 umount /initrd/dev failed: 2 Kernel panic - not syncing: Attempting to kill init! I tried recreating the initial ramdisk with mkinitrd, but the problem persisted. I've rebuilt the package from the source SRPM, same problem. I'm currently booted on the uni-processor 2.6.10-1.760_FC3 kernel, no problem (except it's so much slower due to the lack of smp... ;-). Anyone kind enough to shed some light on this?