My beige G3 with a Daystar/XLR8 G4 CPU in it has started failing to boot OS X.
I have X and 9 on separate partitions. It boots OS 9 fine and sees all the relevant partitions and disks. Disk First Aid and Nortons don't pick up any problems with the drives.
I select the OS X partition as the startup disk (using the patched Startup Disk control panel from XLR8) and restart.
It then shows the OS 9 happy mac for a few seconds, before restarting. This time it drops into open firmware and gives me the following error:
DEFAULT CATCH! code=fff00300 at %5RR0: 0569710: %5RR1: 00003070
If I then type 'bye' to exit OF and continue booting, it says
and returns to the OF prompt.
The best documentation I could find on beige boot problems was on the NetBSD/macppc FAQ. I've tried the following solutions as suggested there:
removing the motherboard battery overnight
multiple PRAM zaps
setenv load-base 4000 (the default value - although it is storing this value correctly, it has made no difference)
The next suggestion is to set the variable real-base, but I'm reluctant to do this, because it's not entirely clear in the FAQ what value I should give it (NetBSD and OS X use different values) and there's a warning that the wrong value may make your machine unbootable.
Right now (from memory) the load-base is set to the default value of -1