booting from USB/Firewire

[Arnaud Delobelle <delobelle@blueyonder.co.uk>]

Hi all,

I have been following the list for a while and would like to try debian 
on my Powerbook G4.  My internal HD is partitioned as when I bought it 
(one big HFS+ partition) and I don't want to repartition it at the 
moment (real estate is too expensive on the internal hard drive).

So I am thinking of acquiring a Firewire/USB external HD to put debian 
on.  Looking at the archives of the list, I see nothing very 
encouraging, though there are no recent posts on the subject.  Does 
anyone have a success story of booting from such a device? Or links to 
useful info?

Thanks.

--
Arnaud