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[rjans]

Hey guys. I am trying to install mac os 9 on my 12 inch 1.5 GHz 2005 powerbook g4. I've tried all sorts of things, but I can't find anything useful. Does anyone know if and how this can be done? I know this question has probably been asked in the past, so instead of criticising, I would appreciate if you gave a link.
Thanks.

[DrNo7]

Hi rjans,

Welcome to the forum !

Mostly it all boils down to some OpenFirmware manipulation before trying to boot off the os 9 for unsupported machines CD.
I found the following post that seemed promising but have not tried it yet on my PB 12" 1.5:

http://macos9lives.com/smforum/index.php/topic,4781.msg40883.html#msg40883

If you have some success, another thread about PowerBook G4 12" so it could help regroup a bit the woes and successes.

Have fun !

[Hopfenholz]

Follow the instructions in post 16 and it should work. I have it working here

[rjans]

Thanks, but when it boots the trackpad won't work and neither will an external usb mouse. The keyboard works though

[Hopfenholz]

Disable all extensions with usb in the title and reboot

What external mouse are you using?