Thanks to you for leading me in the right directions.
I think i'll go with booting from OpenFirmware.As far as i unterstood i have to format a Volume HFS (HFS++ wont work right?) and second partion thats free and stick all the files on that hfs volume( linux, yaboot, etc)
Configure yaboot.conf and do the OpenFirmware boot. > boot: hd:1,yaboot boot; install ---That netbootstuff is alil to high for me I guess I'd need a Linux Server for it.
-Arnold Schwaighofer CS Student Austria Linz