Okay, this is roughly how I did it (supplied instructions do not work on my system). 1. Copy the SuSE boot folder onto the HFS formatted Linux Boot partition 2. I deleted all the stuff to do with BootX 3. Delete the Mac OS Rom file (note case) 4. Leave the Yaboot.inf file alone 5. Rename the os-chooser.example file to os-chooser 6. Edit os-chooser file to point to the correct partitions for booting MacOS or Linux 7. I swapped the 2 around so that it boots MacOS by default (keep my girlfriend happy) 8. Run the Make os-chooser bootable script 9. Rename os-chooser to Mac OS ROM That's it. Now, when I hold down space at bootup I get the yaboot menu (oh, made "linux" the default label - this makes it use the latest kernel), whereas if I don't hold the space bar I get MacOS 9.1 Hope this might help someone. The point is that I tried what it said in the manual and also everything I could find on the SuSE site but none of that worked. I think the instructions must be wrong. I'll make more specific instructions soon if anyone wants them. Brad