Re: Replace hardware without reinstall debian lenny
On Tue, May 11, 2010 at 7:59 AM, Lisi <lisi.reisz@gmail.com> wrote:
> 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.
You're welcome. There was a thread though on d-u about UUIDs changing
but it wasn't related to hardware changes, IIRC.
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