howdee - im a new user, but registered for just this one long/detailed comment/reply...
PearPC isn't free standing but needs a client OS which runs in the emulator: Installation of Darwin for PowerPC; Installation of Mac OS X; Installation of Mandranke Linux 9.1 for PowerPC; It is recommended to begin with Darwin first. It is also the last Mac OS X version that supports PowerPC-based applications, as Mac OS X v10.7 'Lion' dropped support for Rosetta. In 2020, 15 years following the announcement to transition to Intel processors, Apple announced a transition of the Macintosh to ARM. My original testbed was a Late 2005 2.3 GHz Power Mac G5 Dual with 3 GB of RAM and two hard drives, one with OS X 10.4 Tiger, the other with OS X 10.5 Leopard.It’s my most powerful PowerPC Mac, so I figured it would be a good way to take Linux for a spin. All versions of Mac OS X that were made to run on PowerPC systems (with the exception of Leopard) had a Mac OS 9 emulation layer called 'Classic'. It allowed Mac OS X to run Mac OS 9 applications that weren't updated to run natively on OS X (known as carbonization based on the Carbon API).
0 - THANK YOU to all who came before on this hint/thread/comment... i am just standing on top of the giants before and adding my little comments for others...
Mac Os X 10.5 Download For Powerpc G5
1 - i could not make a windows-keyboard work... in particular, my imac (g5) would 'ask' about it when powering up by having me press the key 'just inside of shift key' on each side... thus, i was never able to make the keyboard-combo work correctly... if you cannot get into open-firmware, then try getting a normal MAC-keyboard...
2 - i was having all sorts of problems trying to get the correct device to use for the 'dir' command... i could see the tree of information, but could never make a working 'devalias' for myself... two clues:
3 - i was finally able to get things working better by doing/trying the following (details removed for hopeful-clarity):
4 - once i got my magic incantation correct, it took prolly an hour to get thru the first-boot - but eventually i got the great happy-mac sound from the other room... hopefully you will be able to too... :)