Re: Partitions

[Klaus Jantzen <k.d.jantzen@t-online.de>]

On 08/11/2013 04:36 PM, Stephen Powell wrote:
> On Fri, 09 Aug 2013 09:58:19 -0400 (EDT), Klaus Jantzen wrote:
> > by "some magic" the partitions on a HDD receive a block-id
> > or UUID (for fstab).
> >
> > Does the ID of a partition change when the partition is moved
> > or when a new partition is created in the unallocated space
> > between two partitions?
> >
> > Thanks for any info.
> The UUID is assigned when the partition is formatted, not when
> it is allocated.  Commands such as mke2fs or mkswap do the
> formatting.  Moving or resizing a partition will not change its
> UUID, nor will allocating or deallocating another partition
> in any location.  However, reformatting the partition will
> normally change its UUID unless the old UUID is explicitly
> specified as an option during formatting.  For example, I've heard,
> though I have not personally verified it, that the Ubuntu installer
> has a habit of reformatting swap partitions during installation
> that were originally created by the Debian installer, thus messing
> up the Debian system's use of the swap partitions.

Hello,

thank you for the information.
It was helpful because I wnated  to reduce and  to move partitions of 
existing systems
before installing Wheezy.
Everything worked and the old systems are alive.

Thanks.

K.D.J.