Re: Replace hardware without reinstall debian lenny

[Lisi <lisi.reisz@gmail.com>]

On Tuesday 11 May 2010 12:34:13 Tom H wrote:
> On Tue, May 11, 2010 at 3:11 AM, Lisi <lisi.reisz@gmail.com> wrote:
> > On Tuesday 11 May 2010 01:10:50 Rob Owens wrote:
> >> You could use UUID's instead of device names (/dev/sdX) to get around
> >> this issue.
> >
> > There was a thread on this recently, and I think it was said that even
> > UUID's can change with changing hardware.  It was suggested, if I
> > remember correctly, that the only safe way  to prevent a name change is
> > to label the partitions when you first partition the drive and use labels
> > in fstab etc..
> >
> > I am sure someone will correct me if I have got this wrong, so if noone
> > does so I have probably remembered correctly.
>
> I don't remember a thread on debian-user about UUIDs changing with
> changing hardware (I could be wrong though!) but there was a thread in
> March on ubuntu-users where a guy was duplicating disks for a rollout
> and he was convinced that the BIOS of the boxes into which he was
> plugging in the duplicated HDs was changing the UUIDs of the disks'
> partitions because he was unable to boot from those disks unless he
> changed the fstab to use /dev/sdaX devices. I pointed out that the
> idea that a BIOS could change a filesystem's superblock didn't make
> any sense and that it could not be a UUID problem because he could
> boot boxes with Intel mobos but not boxes with another manufacturer's
> mobos (I assume that he could have replied that the other mobos were
> changing the UUIDs and the Intels ones not...).

Thanks, Tom - I may be getting confused with that. 

Lisi