[CentOS] CentOS 4.5 system doesn't boot after installing latest updates

Alfred von Campe
Mon, 24 Sep 2007 20:59:47 -0000

> Today I decided to install all the latest updates (including the
> -06 kernel).  The "yum update" seems to have run just fine (no
> errors), but when I rebooted the system it just sits there with the
> word "GRUB" in the upper left hand corner.  I booted from the
> CentOS 4.5 install CD into rescue mode, did a "chroot /mnt/
> sysimage" and reinstalled grub and the latest kernel, but it still
> gets stuck in the same place.  It's not that I can't boot the new
> kernel; I can't even get to the grub screen!

I'll answer my own question.  In addition to re-installing grub, a
"grub-install /dev/sda" was required to get the system to boot.  I
thought that reinstalling grub via yum/rpm would take care of it, but
apparently it didn't.  Lesson learned, panic averted.

Alfred