Booting/ installing Debian on a G3 with Open Firmware 2.4

[Michael Fuckner <michael@fuckner.net>]

Hi!

I got a G3 machine and I'd like to install Debian. Currently it is 
running NetBSD, so I know it is possible to run anything other than MacOS.
The Machine seems to be only netbootable and so I tried it, but the 
yaboot-file seems to be in ELF Format, but I think I need XCOFF. Where 
do I get such a file- I read that conversion is said to be impossible.

Regards,
 M.Fuckner!

PS: I'm talking about this model:
http://www.netbsd.org/Ports/macppc/models.html#g3v2