> No changes to the drives, BIOS or anything like that. Did an update via yum (I > think it was on Saturday), reset and nothing - failed to boot completely. GRUB and a hang implies it is choking very early indeed. The MBR is ok because it said GRUB, but after that its a bit suspect and it seems its not finding the the right blocks for GRUB (or something attached/changed the BIOS config order - eg a USB bootable device - one box here fails much the way you describe if I accidentally leave a USB key in it during boot) The fsck result is hopeful - but did you just get an immediate "clean" return from ext3 or did you force a full check ? (-f option) ? "It does complain that some of the points have not been mounted due to a problem" Actual exact message text is good, thats why error handlers don't just all print "It broke" Alan