On 12/28/07, Jeff Rizzo <riz@netbsd.org> wrote:
> Bernd Ernesti wrote:

> > Hmm, what is the magic behind these numbers?
> > How did you chose them?

> Generated using uuidgen(1).

In case it's not obvious to anyone following this thread, the entire
point of GUID Partition Table is that it uses UUIDs (aka GUIDs) as
identifiers. UUIDs are, if properly generated, guaranteed to be
globally unique, even though they are generated without the benefit of
a central registration service. RFC 4122 documents the format,
although it originally comes from other standards.

They aren't arbitrary numbers.