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dentoni

iBook G4 1.2 Ghz won't boot.

Reply by dentoni

Hi;

Inherited a G4 iBook from my future grand-son-in-law, who seems to treat his stuff rather cavalierly. I get a nice start-up chime, then just after the apple logo comes up, before the busy circle appears, it stops with this message, (whether I boot OS or 'command-S')

Error: Extension archive doesn't contain software for this computer's CPU type.

Error: Couldn't unpack multi-extension archive.

panic(cpu 0 caller 0x002E54BC): Unable to find driver for this platform:"PowerBook6,5".

There's about 25 lines of text, ending with:

panic: We are hanging here... but it won't accept keystrokes, either.

Unfortunately it also has one of those garbage slot-loading optical drives with flaky mechanicals, (with an OS 10.3 disc stuck in it, which it won't boot into.)

Does anybody have any idea what's going on? I'm thinking ROM got corrupted somehow...?

rj713

Reply reply by rj713

This sounds like a kernel panic to me. Try using safe boot to startup the computer. If successful you should be able to eject the 10.3 disk and try a restart. URL for safe boot below. Ralph

http://support.apple.com/kb/HT1455

machead3

Reply reply by machead3

SOMETIMES the KP is caused by a failing Optical Drive! You can unplug it from the logic board and see if that stops the KP... If so you know what to do.

Also I have successfully solved KPs by making modifications to the System/Library/Extensions Folder based on a good Safe Boot. (e.g. removing intel only extensions, extra graphic extensions etc.)

Good Luck,

N.

dentoni

Reply reply by dentoni

Thanks for the tips, guys! The website for the Safe Boot was particularly useful, Ralph, since it had links to trouble-shooting kernel panics; One of the things suggested was re-setting the PRAM, (suppose I should have thot of that!) but who'd a thunk it would do the trick? Zapped the PRAM and voila, boots 'n runs!

Thanks again

~Den

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