On Mon, 2006-05-29 at 13:02 +0200, Dominik Składanowski wrote: > Hello list. > > Since morning I have an emergency. After last kernel update one of my > servers didn't start. On display I see only "GRUB" :( > I have 2 more servers based on CentOS too, but after the same update > this servers works. > > All servers have 2 HDs and works as software mirror. > > I have started damaged machine using Knoppix and I can see partitions > and data on both disks. Of course I have made a backup. > > Anybody has the same problem? It can be hardware problem - HD diode > light all the time. Or maybe something went wrong during update? > It is very strange that grub (which was already installed and working) would go bad during an upgrade. I would boot from a CentOS-4.3 CD-1 and do this command at the isolinux prompt: linux rescue If it mounts the install at /mnt/sysimage ... do this: chroot /mnt/sysimage Then I would follow this guide to make sure that grub is installed on both hard drives and try rebooting: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=114690 (comment #7 should make you work ... assuming you have a software mirror using sda/sdb or hda/hdb) You may need to look at the file /boot/grub/Device.map to insure all the drives are listed properly. Thanks, Johnny Hughes -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 189 bytes Desc: This is a digitally signed message part URL: <http://lists.centos.org/pipermail/centos/attachments/20060529/ef9f8fd0/attachment-0005.sig>