[G4] Firmware and BootROM

[Ronald Steinke]

On 10 March, 2006, at 11:08:32, nagable at comcast.net wrote:

> It starts up OK from the OS 9.2.1 CD. I ran Disk First Aid, Disk  
> Warrior, and then did a clean install, but each time I rebooted it  
> froze.  I suppose I could just start up from the CD and do the  
> firmware upgrade from there.

Have you tried to start with your extensions off? Try holding down  
the shift key and see if you can complete the startup.

I had a similar experience with a drive that had three corrupted  
extensions because of a bad installation of HP printer drivers. Once  
I booted with extensions off, I disabled the first half of the  
extensions and rebooted. It failed to boot again. I started, again  
with extensions off, and disabled the second half of the extensions  
as the final part of my extension test. The machine started perfectly.

I then cut that half into halves and re-did the tests. Finally, I  
narrowed it down to the HP printer drivers. I removed them and had no  
further problems on starting. I got new drivers from HP, installed  
them, and rebooted. This installation was good and the problem did  
not return.

Perhaps this advice will help, perhaps not. It's at least worth the try.