I have OS X running fine, but classic and my 9.X partition will not work. I have a powerbook Ti with 384 MB.
Everytime I tru to run I get the message
This startup disk will not work on this Macintosh model. Use the latest installer to update this disk for this model.
If I try and run the 9.2.1 update from the CD, it locks up.
I tried to use the "Update Driver" in the drive setup program, and Disk First Aid said everything was fine with the hard disk.