I finally got Morphos 3.1 set up on a Powerbook g4, following this guide, mostly i got it set up tri-booting Mac os10.4 Debian squeeze and Morphos. However for the powerbook atleast i had to do the following:
instead of :tbxi" $boot ; i used boot.img" $boot ; in ofboot.b and then blessed the file. simply copying the first yaboot line and replacing \\yaboot with boot.img did the trick.
