[CentOS] Migration from VMWare to HP Blade

[Lanny Marcus]

On Wed, Nov 19, 2008 at 7:59 AM, Matthew Walster <matthew at walster.org> wrote:
> A few months ago, I migrated some of our internal servers to HP blades, as
> the VMWare box they were previously running on was getting too slow.
> However, it wasn't without it's problems, and eventually the only way I
> could get them to work was:
> Install the same version of CentOS on the blade (believed to be 5.0, but
> /etc/redhat-release says 5.2)
> Took down both servers, booting them off the SystemRescueCD, mounting all
> the partition on /mnt/transfer etc
> Ran rsync to copy all the data from one to the other - except /boot and
> /lib/modules
> Brought the blade up, and saw that it booted fine.
> However, a new kernel has been released and we tried rebooting... And it
> panicked. It seems to be LVM related, in that it can't mount /dev/root - and
> I've tried manually running mkinitrd to regenerate the initrd to no avail.
> I was just wondering if anyone had encountered similar problems, and knew of
> any solutions?
> I'm from a debian background, so am a little unused to certain aspects -
> when a yum upgrade installs a new kernel, where does it pull the information
> for boot from? A configuration stanza from within grub's menu.lst?

I think you will find that in /boot/grub/grub.conf

Other, far more knowledgeable people on the list will, hopefully,
answer your questions.