Hi folks.

I updated a RHEL 4 system today using up2date and when the system rebooted it just said "GRUB" on the screen for a few seconds and then restarted (and did this over and over and over).

I booted from a rescue CD and was going to reinstall grub.

Here's the kicker: this machine has two hard drives configured with software RAID 1, and I don't want to screw up the mirroring by tinkering with grub.

/etc/fstab shows that /boot is at /dev/md0 but "/sbin/grub-install /dev/md0" doesn't work ("/dev/md0 does not have any corresponding BIOS drive").

I have a bad feeling that if I do "/sbin/grub-install /dev/hda1" that I'm going to screw up my mirroring.

If anyone has any suggestions, that would be fantastic.

Thanks in advance!

G.--

Load with the rescue disk and let's see the output for fdisk -l

/dev/md0 is a raid drive, so what is it mirrored to? like, dev/sda1, or /dev/hda2?

Can you mount /dev/md0 from your rescue disk?

Hi cheftec.

Thanks for your reply. Yesterday I tried tinkering with grub and made the whole situation worse. So right now I'm "updating" the installation with the 4.7 CDs and hope that that will fix the grub situation (the installer complained that grub wasn't configured properly, so I'm hoping this fixes things with minimal other operating system problems...).

I'll post back if for some reason this doesn't fix things, but for now, I think the tactical nuke approach will hopefully do the trick.

Thanks.

G.--