Hi, 

I've just subscribed but have been on and off of LEM lists since 1997. 

I'm working on an iMac that will not boot. I get an error message that says
"This startup disk will not work on this Macintosh model. Use latest
installer to update this disk." Of course I tried to boot with a CD, I tried
the original iMac CD, a Disk warrior CD, and a USB Zip disk with OS9.1 on
it. It seemed to ignore whatever disk I had in and try to start from the
hard drive which it says has an invalid startup disk. I can't get to the
open firmware startup manager using the option key. I zapped PRAM, reset
NVRAM with no help. I also tried apple>option>shift>delete to select the
non-startup disk. 

 

Then I got serious. First I replaced the CD-ROM drive, because the owner
said she had had some problems with it lately. That didn't help at all. So,
then I replaced the hard drive with a known good used drive that I had
initialized and zeroed with OSX's disk utility. Of course this didn't work
and all I got was a flashing question mark. The computer still won't
recognize any CD or Zip as bootable. When I was in open firmware I ran
devalias and it sees the hard drive and CD-ROM. Can anyone think of anything
else I can try? I appreciate all of your help.

 

Thanks, Bill



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