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Author Topic: PowerBook G4 12" 1.5ghz not booting  (Read 91796 times)

Knezzen

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PowerBook G4 12" 1.5ghz not booting
« on: December 22, 2015, 01:36:11 AM »
Hi,

I tried to get my old PowerBook G4 12" 1.5ghz with 1.25gb RAM to boot from the unsupported iMic Mac OS 9.2.2 CD, but it just stalls before showing the happy Mac. Have anyone got the last 12" PowerBook booting?

Specs:
http://www.everymac.com/systems/apple/powerbook_g4/specs/powerbook_g4_1.5_12.html
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mrhappy

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Re: PowerBook G4 12" 1.5ghz not booting
« Reply #1 on: December 22, 2015, 09:33:10 AM »
Latest model that I tried/booted was the PowerBook Alu 17...  but that has the 7455.

http://www.everymac.com/systems/apple/powerbook_g4/specs/powerbook_g4_1.0_17.html
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MacTron

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Re: PowerBook G4 12" 1.5ghz not booting
« Reply #2 on: December 22, 2015, 10:02:58 AM »
it can boot from the CD?
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Knezzen

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Re: PowerBook G4 12" 1.5ghz not booting
« Reply #3 on: December 22, 2015, 10:38:36 AM »
Quote from: MacTron on December 22, 2015, 10:02:58 AM
it can boot from the CD?

Perhaps I was a bit unclear. It can boot from it's own hard drive (with Leopard on it) as well from my Tiger DVD and Leopard DVD, but not from the CD i burned with Mac OS 9.2.2 for unsupported systems. It just stalls at the gray screen before showing the happy Mac when trying to boot from the 9.2.2 CD.
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mrhappy

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Re: PowerBook G4 12" 1.5ghz not booting
« Reply #4 on: December 22, 2015, 12:12:13 PM »
Maybe try booting it from ext fw drive??
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MacTron

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Re: PowerBook G4 12" 1.5ghz not booting
« Reply #5 on: December 22, 2015, 05:38:21 PM »
Be sure that the multiprocessor folder is removed from the startup system folder.
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GaryN

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Re: PowerBook G4 12" 1.5ghz not booting
« Reply #6 on: December 22, 2015, 10:58:10 PM »
Could the System have gotten unblessed?
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Knezzen

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Re: PowerBook G4 12" 1.5ghz not booting
« Reply #7 on: December 23, 2015, 03:30:34 AM »
This is straight from the "Mac OS 9.2.2 for unsupported systems" CD downloaded from here, unmodified. So I can't remove the multiprocessor folder without altering the ISO.
I tried it just for fun and thought it would work and at least boot, but it wont.

GaryN: not sure if you can "bless" a system folder on a CD.
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MacTron

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Re: PowerBook G4 12" 1.5ghz not booting
« Reply #8 on: December 23, 2015, 07:08:04 AM »
The 7447 usually must be *hacked* in Open Firmware .
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jpoliti

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Re: PowerBook G4 12" 1.5ghz not booting
« Reply #9 on: February 29, 2016, 04:36:10 PM »
I have the same machine (12" Powerbook G4 1.5ghz with 1.25 gigs ram) and would like to run OS 9. Has anyone advice for getting it to work?
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devils_advisor

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Re: PowerBook G4 12" 1.5ghz not booting
« Reply #10 on: February 29, 2016, 04:51:24 PM »
you need to tell where you at what you tried so far whats not working and so on. dont take me wrong but if i tell you my car is not running what would be your diagnose:D

a little more detail would help. did you used the iso image from here or somewhere else and where are you stuck.
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