Hello,

> I'm trying to install netbsd on a PPC G4 AGP with 2 drives: one with  
> MacOSX and the second drive for NetBSD.
> 
> I have made several instalations but I can't boot netbsd.
> 
> Could every one help me and give me some tips?

Sure, but "doesn't boot" isn't enough, we need a few more details, like:
- what exactly happens / doesn't happen?
- which NetBSD? 
- where and how exactly are the drives connected?

have fun
Michael