Just for fun, I'm trying a few different Open Firmware commands to see if I can get my G5 to even attempt to boot OS 9.
I have Mac OS ROM 10.2.1 and 9.8.1 at my disposal. I modified the Mac OS ROM 10.2.1 to include "MacRISC3" and "MacRISC4". I'm not sure if I also need to add "PowerMac7,3" or not.
I have to use Open Firmware to set the boot variables. Obviously I cannot select OS 9 in the Startup Disk control panel.
So far, it will sit at a black screen for several seconds, load a grey screen (maybe OS 9 just starting to load?), then flash to another grey screen with the missing system folder icon, then it will boot to Tiger that I have on a backup drive.
Upon further inspection of ROM 9.8.1 they have PowerMac4,3 listed so I guess I should try listing PowerMac7,3 in either ROM.
Interesting information: Right after I added MacRISC3 to the ROM 10.2.1 and saved it in HexEdit, the G5 hard froze. Coincidence???
I have Mac OS ROM 10.2.1 and 9.8.1 at my disposal. I modified the Mac OS ROM 10.2.1 to include "MacRISC3" and "MacRISC4". I'm not sure if I also need to add "PowerMac7,3" or not.
I have to use Open Firmware to set the boot variables. Obviously I cannot select OS 9 in the Startup Disk control panel.
So far, it will sit at a black screen for several seconds, load a grey screen (maybe OS 9 just starting to load?), then flash to another grey screen with the missing system folder icon, then it will boot to Tiger that I have on a backup drive.
Upon further inspection of ROM 9.8.1 they have PowerMac4,3 listed so I guess I should try listing PowerMac7,3 in either ROM.
Interesting information: Right after I added MacRISC3 to the ROM 10.2.1 and saved it in HexEdit, the G5 hard froze. Coincidence???