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From: mrh@Shasta.STANFORD.EDU (Marc Hannah)
Newsgroups: comp.sys.mac
Subject: Re: Help! Dataframe XP30 no longer boots
Message-ID: <2076@Shasta.STANFORD.EDU>
Date: Thu, 8-Oct-87 00:12:33 EDT
Article-I.D.: Shasta.2076
Posted: Thu Oct  8 00:12:33 1987
Date-Received: Sat, 10-Oct-87 17:47:08 EDT
References: <YVOLj0y00W0NcMo0H-@andrew.cmu.edu>
Organization: Stanford University
Lines: 21
Summary: reset parameter ram

In article <YVOLj0y00W0NcMo0H-@andrew.cmu.edu>, rf1m+@andrew.cmu.edu (Richard Vernon Ford) writes:
> I have a Mac II hooked to a Dataframe XP 30 hard disk, no internal hard disk.
> Over the weekend the Dataframe decided to no longer boot.  I can boot off a
...
> -Richard Ford
    I have had similar problems in the past. Some flakey program has probably
written something into parameter RAM which has caused your problem. To fix
this problem, hold down command-option-shift and select the control panel.
You will be asked if you want to reset parameter RAM. Say yes, then restart.
You should boot off your hard disk fine, but you'll have to reset your
mouse speed, etc. 
   According to one of the Apple Technotes about hard disks, the Mac II not
only stores the information about which SCSI device is the startup device
but also what KIND of device it is. For example you may want to boot up into
UNIX and use a unix disk. In any case, if the KIND information gets trashed,
then the Mac is looking for some kind of nonexistent disk and won't boot.
   Evidently Apple's SC Setup will also fix this information if you update
the drivers, but for a non Apple Hard Disk this is NOT something you want
to do. Good luck, 

David Gelphman   daveg%slacvm.bitnet@forsythe.stanford.edu