I just made my first attempt to install SuSE on my PowerPC. It didn't really work out. It had me copy an install file to the root of my drive and restart. I did so, completed some information in a gnarly-looking installer, and it downloaded a bunch of stuff, complaining all the while. Every now and again, it would -- without warning -- drop me back at a menu, where I would simply select "install," not knowing what else to do. Eventually, it assured me that SuSE was as installed as it was going to get, and dropped me to a login prompt. I logged in as root, and was greeted with a prompt. There was very, very little on the machine -- just a bare bones text install. I thought that perhaps a reboot was in order -- perhaps there was some auto-configuration step that required that. So I rebooted, and now I'm in Mac OS X. No boot manager ever asked me what OS that I wanted, and I have no idea of how I'd get back to SuSE.