chroot installation on live system + podcast of Jeff Waugh

[Chris Dawson]

Is it possible to install Ubuntu onto a live running system.  I know
that Gentoo permits something like this
(http://www.gentoo.org/doc/en/altinstall.xml, #6: Installing Gentoo
from an existing Linux distribution).  Can the same be done with
Ubuntu?   I have an old SuSE 6.3 system that I would like to upgrade. 
It does not have a floppy drive, nor does it have a CD ROM, but I do
have root access!  Can I install Ubuntu on this?  I've searched around
but haven't found much in the way of something like this.  Any
suggestions?

Also, I attended Jeff Waugh speaking here in Portland, OR last week
and podcast the event.  You can check it out here: 
http://plug.podasp.com/archive.html?podcast=107.  What a bonus that
Mark Shuttleworth was there!

Chris