[rescue] Odd Mac startup problem

Tim H. lists at pellucidar.net
Sat May 1 08:19:24 CDT 2004

On Sat, 1 May 2004 02:36:29 -0400
Phil Stracchino <alaric at caerllewys.net> wrote:

> Hoping for a little troubleshooting advice from the Mac folks.
> We have a 7300/180 upgraded with a Sonnet G3/300 card.  About 328MB of
> RAM, two hard disks (I just put the second one in tonight), CDROM,
> running MacOS 9.1 (or 9.1.2, I don't recall offhand).  I have the
> cache speed pushed up somewhat to 3:2 instead of the default 2:1, but
> it appears fully stable at that speed.
> It has a consistent weird behavior that has been going on for at least
> a month and I cannot for the life of me find the cause.  Power it on,
> all the appropriate indicator lights come on, the hard drive spins up
> (actually, now, both hard drives spin up), but it doesn't boot.  Zip,
> nada, no sad mac, not even a vertical-blank signal to the monitor --
> it just sits there.  Shut it off and immediately power it back on
> again, and on the second try, it boots flawlessly every time.
> Anyone have any suggestions? About the only thing I can think of is
> some kind of flakiness on the boot disk, perhaps a stiction problem in
> the head actuator.  But I've never seen a stiction problem that acts
> like this before, or this consistently.
> -- 
>  .*********  Fight Back!  It may not be just YOUR life at risk. 
>  *********.: phil stracchino : unix ronin : renaissance man : mystic
>  zen biker geek :: 
>  alaric at caerllewys.net|phil-stracchino at earthlink.net|phil at novylen.net 
>  ::   2000 CBR929RR, 1991 VFR750F3 (foully murdered), 1986 VF500F
>  (sold)   ::    Linux Now!   ...Because friends don't let friends use
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I had a similar issue on a PC, in that case the hard drive just wasn't
ready in time.  A cold boot would always fail, a restart would always
work.  IIRC I set something in the bios on that box that took a litttle
more time before it polled the drives, maybe turned on a longer memory
test, then it was fine.  I don't know if that is your problem, but the
symptoms sound similar.


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