yaboot won't install --> related to: trying to install 4.10 ("warty-warthog") on a "Titanium" powerbook

[chris]

I have a new problem:
	I can't get yaboot to load.  It can't see my HFS+ partition with MacOS 
10.2 (I'll upgrade to 10.3 soon, long story why), nor the HPS 
partition, even though the partitioner with the install feature clearly 
saw the HFS+ and HFS volume.

This computer is a G4 1GHz with 1GB of ram and 60,000,000 byte drive 
(IBM calls it 60GB, but it reads as 58.x GB.

Is there anyway I can it to just not load yaboot?
Or better yet can manually load yaboot onto my harddrive then load 
ubuntu?
		Follow Up on second question: can I just not install yaboot and 
switch OSes by holding down the alt key at start up and choosing 
whichever I want?

Thanks,
	Chris