Author Topic: OS 9 on mid-2005 iBook G4? (PowerBook6,7)  (Read 2193 times)

Offline JMK19

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OS 9 on mid-2005 iBook G4? (PowerBook6,7)
« on: November 18, 2018, 04:53:15 PM »
So I'm new to the forum and I got the Mac OS 9 on unsupported G4s ISO image and burned it to a disc.
I can get so far as to select it in the option key boot menu, but then I just see a grey screen, nothing else.
I also tried the Universal Install CD as well just for fun, of course that didn't work.
Last thing i tried is run the System Restore app from the Unsupported G4s iso in Classic, but when I click Restore it can't close some apps and fails.
(I already tried doing the same action in Disk Utility, and no matter what way I tried it, I couldn't get that image to restore to my 30GB partition.)

Does anyone know how I am supposed to do this? I've heard that on the ThinkClassic website there's a Mac OS ROM for the iBook G4, but I can't find that. Still looking though.

Offline JMK19

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Re: OS 9 on mid-2005 iBook G4? (PowerBook6,7)
« Reply #1 on: November 18, 2018, 04:57:41 PM »
Also, I've seen this post on ThinkClassic and this has to have something to do with it:

From the user ClassicHasClass:
There are a lot of problems with late iBook G4s. It's probably a variant of the known DO-QUIESCE issue, which is not currently well understood.

Offline JMK19

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Re: OS 9 on mid-2005 iBook G4? (PowerBook6,7)
« Reply #2 on: November 20, 2018, 07:03:46 PM »
After following the instructions here: https://www.thinkclassic.org/viewtopic.php?pid=4889#p4889
I can boot from the Unsupported G4s CD and see more than just a grey screen. Now it starts to boot with the trackpad issues, then loads this
extension with two arrows going back and forth (? what is this) and then the cursor bombs out and the hard disk and CD spin down. Can't get past here, trying Shift for safe mode now.

Offline JMK19

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Re: OS 9 on mid-2005 iBook G4? (PowerBook6,7)
« Reply #3 on: November 20, 2018, 07:11:41 PM »
Even with Extensions disabled I get stuck at this certain point about one-forth of the way in, then bombs out and spins the disc/disk down. Seems there's nothing I can do.

Offline darthnVader

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Re: OS 9 on mid-2005 iBook G4? (PowerBook6,7)
« Reply #4 on: November 21, 2018, 06:34:15 AM »
Code: [Select]
dev /pci@F2000000/mac-io/i2s/i2s-a

" screamer" encode-string " compatible" property

device-end

" /" select-dev

0 " graphic-options" get-my-property 2drop !

unselect

It's the sound device stopping boot.

Offline JMK19

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Re: OS 9 on mid-2005 iBook G4? (PowerBook6,7)
« Reply #5 on: November 23, 2018, 07:42:58 AM »
Thanks  :D About to try this.

Offline JMK19

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Re: OS 9 on mid-2005 iBook G4? (PowerBook6,7)
« Reply #6 on: November 23, 2018, 08:06:17 AM »
This might be working! Can't really tell cause I messed it up and had to redo it. By the way, trackpad doesn't work at all under OS 9.
I think this might just be a easy fix cause the same trackpad not working thing happened in 10.4 after a fresh install, then fixed automatically when I updated to 10.4.11.

Offline JMK19

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Re: OS 9 on mid-2005 iBook G4? (PowerBook6,7)
« Reply #7 on: November 23, 2018, 08:08:11 AM »
Same thing, bombs out at the same point. Should I reset NVRAM and PRAM or whatever, then retry the commands? Or will that mess everything up?

Offline darthnVader

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Re: OS 9 on mid-2005 iBook G4? (PowerBook6,7)
« Reply #8 on: December 11, 2018, 05:38:25 AM »
Works fine for me Mac OS ROM 10.2.1 (Generic) PowerBook6,7( 12" iBook G4 1.33Ghz ).

The tracpad doesn't work and you need the 'NDRV' I made for the Radeon 9550.

If you're still wanting to get this to work, I'll upload both the ROM and the 'NDRV'?

Offline darthnVader

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Re: OS 9 on mid-2005 iBook G4? (PowerBook6,7)
« Reply #9 on: December 15, 2018, 03:39:21 PM »
Here are the files needed for the iBook G4 with the Radeon 9550.

You'll also need to set an nvram script....

Code: [Select]
nvedit
dev /pci@F2000000/mac-io/i2s/i2s-a
" screamer" encode-string " compatible" property
device-end
CTRL+C
nvstore
setenv use-nvramrc? true
reset-all

If you want the tracpad to work on the 12" model( 14" untested ), albeit very slow tracking, remove the USB Device Extension as it seems to be what is conflicting with the tracpad, and making it not work.

 
« Last Edit: December 15, 2018, 03:51:19 PM by darthnVader »