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 updating firmware on imac g3 
 
 
  #1 (permalink)  
Old 28-05-2007, 08:35 PM
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updating firmware on imac g3
Hello,

Further to my last threads, I'm now trying to update the firmware on this g3 iMac.
The problem, of course, is that I tried to install 10.4 and the screen went black.

So the screen is 'dead' but there's an external VGA port that works. I need to install OS 9 to install the firmware update, don't I?

When I insert the os9 CD, though, and boot from it, it doesn't 'see' the iMac's hard drive, so it can't install.
When I boot it normally (into 10.2), I cannot install OS 9 - only start some kind of classic mode.
And when I try and start it in Firewire Target Disk mode, (by holding T), it just boots into 10.2.

What do I do?!

- Jeremy
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Old 28-05-2007, 08:41 PM
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Yep, it's a pain but you need to install OS 9 to a bootable drive to install the firmware. You may not be able to "see" your internal hard disk as it may not have OS 9 disk drivers installed - an option checked when you format a drive under OS X.

The easiest way to do the firmware upgrade would be to install OS 9 onto a spare/or external FW drive. Or, format the internal drive (using Apple's Drive Setup utility under OS 9), then install 10.4 from scratch. Otherwise, installing OS 9 onto an existing version of OS X can make things get messy.

JB
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Old 28-05-2007, 09:11 PM
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JB

That's what I did - OS 9 first + firmware, then OS 10. 4.

B.
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Old 28-05-2007, 09:13 PM
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unfortunately thats the truth Jeremy. . .
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Old 28-05-2007, 09:44 PM
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OK - I have a few spare hard drives, so I'll

1. Boot up the mac with the external FW hard drive attached and the OS 9 CD inserted..
2. Install OS9 to the external drive
3. Download and run the firmware updater
4. Clean install of 10.4 on the mac's hard drive

Sound good?

Cheers everyone
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Old 28-05-2007, 10:54 PM
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You could try booting off your 10.4 dvd and then use disk utilities (on the dvd) to format the drive with the os 9 drivers. At that point you should be able to restart from the os 9 cd and the install program should see the hard disk. not quite as good as using an external firewire drive it should work!
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Old 28-05-2007, 11:49 PM
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Quote:
You could try booting off your 10.4 dvd and then use disk utilities (on the dvd) to format the drive with the os 9 drivers. At that point you should be able to restart from the os 9 cd and the install program should see the hard disk. not quite as good as using an external firewire drive it should work!
Good idea - I like it, much simpler than the external drive!

- Jeremy
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