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  #1  
Old 06-03-2007, 09:22 PM
OldMacGuy OldMacGuy is offline
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Recovery for a 17" iMac Igloo

I ran software update and downloaded Security Update 2007-005 and installed it today and it hosed my 17" iMac Igloo running OS 10.4.9. I get a kernal panic when trying to boot.

I do nightly backups with SuperDuper, using an external firewire drive. I can boot from that backup, which last ran at 1:30 this morning. So I need to restore the iMac to pre-Security Update status, using the available backup. How, exactly, do I go about that? Feel free to speak to me like a newbie. I've been on Apple machines since the ][+ but never needed to do this before.

Thanks.
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  #2  
Old 06-03-2007, 10:52 PM
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dnanian dnanian is offline
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Simply follow the steps in "Recovering from a disaster" in the User's guide -- basically, Smart Update from the backup back to the internal. Very Easy! :-)
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  #3  
Old 06-03-2007, 11:52 PM
OldMacGuy OldMacGuy is offline
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Hi Dave,

I did a Smart Update from the backup to the internal drive. The result was no different than before I tried that -- attempting to boot from the internal drive yields a kernal panic while the backup remains a viable boot disc. Should I try an erase and copy?

Thanks,

Michael
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  #4  
Old 06-03-2007, 11:54 PM
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Sure -- you can try: it's possible that an imortant file's internal content is damaged. Have you looked at the panic.log to see what's having trouble?
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  #5  
Old 06-04-2007, 02:36 PM
OldMacGuy OldMacGuy is offline
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Hi Dave,

I just did an erase and copy of all files from the backup. No luck. Still get a kernel panic when I try to boot. How would I go about looking at the panic.log without being able to boot from that machine? And now that I've done a complete erase and copy would that still even be possible? I still can boot from the backup but only from the backup.

Here is some of the text that appears onscreen:

panic (cpu0 call 0x002e068) Unable to find driver for this platform: "PowerMac6,1"

then there are some other things before we get to:

Kernel version:
Darwin kernel 8.6.0: Tue Mar 7 16:58:48 pst 2006; root: xnu-792.6.70.obj~1/release_ppc
panic: we are hanging here . . .

Other than the erase and copy, is there any other way to use the existing backup to rescue this machine?

Thanks,

Michael
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  #6  
Old 06-04-2007, 03:34 PM
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That implies that the copy of the OS that you're starting from doesn't support the Mac you're running.
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  #7  
Old 06-04-2007, 03:38 PM
OldMacGuy OldMacGuy is offline
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Hi Dave,

I don't understand how that could be. The machine booted fine until yesterday when I attempted to install the Security Update from Apple. I've now erased that drive and copied the SD clone from my external drive. The same machine boots perfectly from that clone when I boot from the external. All I'm hoping to do now is to use that SD clone to restore everything that is working when I boot from the external to the internal drive on the iMac. Any suggestions?

Michael
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  #8  
Old 06-04-2007, 04:01 PM
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I agree, it doesn't make a lot of sense, but that's what the error indicates.
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  #9  
Old 06-04-2007, 05:12 PM
OldMacGuy OldMacGuy is offline
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Is there another way to copy the SD clone from the external to the internal that might give me a chance at recovering?
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  #10  
Old 06-04-2007, 07:11 PM
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dnanian dnanian is offline
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Well, you've tried using both SuperDuper! and Disk Utility. It's just very strange that the copy itself is working fine, but not when restored.

Try restoring it, then using your OSX install disc to archive-and-install Tiger on the restored drive. Perhaps the fresh OS on top will work.
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