2006/5/29, Johnny Hughes <mailing-lists@xxxxxxxxxxxx>:
> 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 for answer Johnny. It was exactly problem described above. I
have reinstalled grub using rescue evironment.
Thanks.
--
_________________________________________________________________
D o m i n i k S k ł a d a n o w s k i
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos
