Hi Jim,

Thanks for the reply.  Unfortunately, that wasn't it.  It *was* set to
CS.  I changed it to master, but still no go.

However, the problem seems to be intermittent.  Or rather, normal
booting seems to be intermittent.   ;-)   In about 15 boots attempts, it
actually booted off the hard drive two times.

After Googling, I found this:

http://homepage.mac.com/techedgeezine/cart_imac_update7.htm

Where the author says:

   Remember that when you install Mac OS X, either 10.1.5 or 10.2.6
   “Jaguar”, you must create two hard drive partitions with the
   first boot partition at less than 8 GB for OS X. We suggest using a 7.90
   GB partition to install OS X 10.2.6 Jaguar in, a second partition of 5
   GB for OS 9.2.2 and the remainder of the space for a Data partition.

I wonder if the same kind of restriction on boot partition size exists
for MacOS 8.5?  But that doesn't sound like something that would cause
intermittent booting.

I've also heard that a 7200 rpm drive may be too hot for an imac.  And
that DOES sound like a cause of intermittent booting.  Unfortunately, it
happens even after the machine is completely cooled down.

Perhaps the power requirements for a 7200rpm drive is higher than the
power supply can nominally put out?

What do you think?

Any other ideas?

Thanks!
Pete



On Sun 01 Aug 04,  5:36 PM, Jim Arnott <[EMAIL PROTECTED]> said:
> Make sure that the jumper is on Master, not Slave or Cable Select.
> 
> Jim
> 
> On Sunday, Aug 1, 2004, at 16:43 America/Vancouver, Peter Jay Salzman 
> wrote:
> 
> >
> >The screen, upon reboot, displayed an icon of a folder with a blinking
> >icon that alternated between a "?" and a graphic that looked like a 
> >face
> >(a square, two eyes and a "lightning bolt" that looked like a nose").
> >
> >I'm assuming that this is MacOS's way of saying:
> >
> >   I can't find a boot device.
> >
> >I put the OS installation disk back into the computer.  My little test
> >file was still on the drive, so I know the drive is working.  I
> >reinstalled the OS for the heck of it and rebooted.
> >
> >Nothing.  I still got the flashing "?" with the imac "face".
> >
> >
> >I'm at a complete loss here.  If this were one of my Linux boxes, I
> >would say that the master boot record isn't pointing to a bootable
> >partition.
> >
> Leopards break into the temple and drink to the dregs what is in the 
> sacrificial pitchers; this is repeated over and over again; finally it 
> can be calculated in advance, and it becomes part of the ceremony. 
> -Kafka
> 
> 
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