I posted this to the hack the hardware section, but I thought it applied to both forums and am really looking for some help:
Not directly hardware related, but it used to be. Now that the Open Firmware loads its settings from the MacOS ROM, is there any way to hack the ROM and disable the compatability check?
To tell you the truth, I'm quite sick of MacOS 9. I've had nothing but problems. I would really like to get good ol' MacOS 8.5.1 back on my Mac. Unfortunately the 500MHz G4 is restricted to MacOS 9 and above.
I was thinking of somehow editing the MacOS 8.5 ROM into bypassing the compatability check, thereby just continuing to boot.
I would apreciate any comments or suggestions. I know a similar task was accomplished with MacOS X and a UMAX clone (but it was Open Firmware direct since it wasn't a New World Mac.)