Path: utzoo!mnetor!uunet!husc6!cmcl2!yale!decvax!dartvax!eleazar!ack
From: ack@eleazar.Dartmouth.EDU (Andy J. Williams)
Newsgroups: comp.sys.mac
Subject: Re: HDisk dissapear, but still there!?
Message-ID: <8572@eleazar.Dartmouth.EDU>
Date: 7 Apr 88 20:35:30 GMT
References: <22103@tis.llnl.gov>
Reply-To: ack@eleazar.Dartmouth.EDU (Andy J. Williams)
Organization: Ack Systems
Lines: 41

In article <22103@tis.llnl.gov> sierra@ati.tis.llnl.gov (Frankie Sierra)
writes:
>I have been using a Peripheral Land 90i hard disk on my Mac II for
>about 4 weeks without any problems.  But last night, I was checking
>out some public domain desk accesories using a DA tester program.
>As usual one of those DAs crash on the Mac II, and I press the RESTART
>button in the bomb dialog with no effects (as usual again).  Thus I
>proceed to press the programmers button to restart the machine, and
>guess what, the system found no disk to boot up.
...
>I dismounted the hard disk, boot up without it, remounted again, but
>no luck.  All connections are fine.  It seems like the system got
>amnesia.  How can I make the system to believe that in fact the Hard
>Disk is there?

On the MacII in the Personal Computer Center here, we have had a recurring
problem with the HD disappearing from the setup.  Booting up finds no disk,
Disk first aid says it is fine, MacZap doesn't see it, etc.  It is there
but not quite there.

The cause?  I touched the screen.  I wanted to wipe some dust off and ZAP!
System error, and the drive was gone at reboot. (Color RGB monitor).

The fix?  The PRAM was screwed somand did a Control Panel with CMD-OPT down to ZAP the PRAM and start again.
PRAM got zapped (reset) and the Hard Drive reappeared totally intact on
reboot.  What the hell kind of bug is that?  I was able to repeat this bug a
number of times.  Now we havethis helps the original poster above, zapping the PRAM may fix all, or do
nothing.

>
>Frankie Sierra
>sierra@ati.tis.llnl.gov

-Andy

Just say fieyrnt.
-- 
Andy J. Williams'90 |_   /| ACK!  |BITNET: ack@eleazar.dartmouth.edu
HB 509 Dartmouth Clg|\`o_O'Systems|UUCP:{ihnp4,decvax,linus}!dartvax!eleazar!ack
Hanover, NH 03775   |  ( )        |DISCLAIMER: You better like my opinions,
603-643-7727        |   U  --ACK! |         my mother can beat up your mother...