[CentOS] Changing disk UUID after cloning

Wed May 22 20:42:39 UTC 2013
Eero Volotinen <eero.volotinen at iki.fi>

something like this:


2013/5/22 Glenn Eychaner <geychaner at mac.com>

> So, I have a CentOS 6 system, and I want to make several clones of it.
>  I'm using Clonezilla to clone the drives; that's no problem.  But the
> drive UUIDs are driving me up the wall. After cloning, the two drives have
> the same UUID, but I'd like each clone to have different UUIDs so there's
> no possibility of a conflict when I am running diagnostics with two drives
> installed, etc. But when I change the UUID of the /boot or / partition
> (even if I update /etc/fstab), the system won't boot; it GRUBs OK (after I
> use recovery mode to rerun grub-install), but never gets to the 'Welcome to
> CentOS " message.  Do I need to "rebless" vmlinuz or initrd or initramfs in
> the /boot partition if I change the drive UUID?
> Or should I just ignore UUID and go back to using labels in /etc/fstab
> (which is what I did in CentOS 5)?
> Thanks,
> -G.
> --
> Glenn Eychaner (geychaner at lco.cl)
> Telescope Systems Programmer, Las Campanas Observatory
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