unable to boot potato cd on ibook2

[Jamie Oulman <jamie@techsquare.com>]

hello all. 

after searching the list archives and not finding anything
i turn to this list.      

im having trouble booting a stable 2.2_rev4 binary1 cd on 
a 600mhz ibook2. ive tried multiple iso's from diffrent 
sites and i still get the same error. 

booting i get this

Welcome to yaboot version 0.9
Wrong partition 1 signature 
Config file read, 528 bytes
Debian GNU/Linux PowerPC (potato)
boot: debian video=ofonly 
Loading kernel...
Wrong partition 1 signature

Image not found.... try again 
WARNING ! default_close called !
boot: 

everything on the cd checks out. any idea's? 

thanks, 
-jamie