m.roth@5-cent.us m.roth@5-cent.us wrote:
This is irritating: I've got a server I just upgraded to 5.4, then rebooted, only to discover that it just *sits* there at the grub boot menu. I looked at grub.conf, and uncommented hiddenmenu (which should have been done long ago).
I just saw something similar happen on a server when I was upgrading it to kernel 2.6.18-164.2.1.el5xen. In this case, however, it didn't get to the grub prompt but rather only got as far as printing "GRUB" and nothing else. This was on a machine that was originally CentOS 5.3 and was previously upgraded to 5.4.
In this case, I had mirrored OS disks so I was able get into the BIOS, and boot from the second disk (which had been previously been set up with a redundant boot block). I then reinitialized the boot block on the first disk (and is the default boot device).
If I didn't have mirrored disks, I would have booted the DVD in rescue mode.
Both the initial grub setup and the reinit were done according to the info available at http://grub.enbug.org/MirroringRAID.
Hopefully that helps.
Devin