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From: hammersslammers1@oxy.edu (David J. Harr)
Newsgroups: comp.sys.mac.hardware
Subject: Re: SCSI question
Message-ID: <67227@tiger.oxy.edu>
Date: 17 Dec 89 01:41:33 GMT
References: <1204@mit-amt.MEDIA.MIT.EDU> <1309@key.COM> <2390@jolnet.ORPK.IL.US> <32253@news.Think.COM>
Organization: Occidental College, Los Angeles, CA  90041
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Ephraim Vishniac was wondering whether what the startup device CDEV recorded
and whether it was a drive number or a SCSI number. Let me relate my
experiences, which may shed some light on the subject (and then again, they
may not:-)). I have an 80 Mbyte Quantum internal and a 152 Mbyte Miniscribe
external that have had various (hard) partitioning schemes. At one time, I
think I had three partitions on the 80 Mbyte and 4 on the 152. Since these
were hard partitions, they would auto-mount and were, for all practical
purposes, independent SCSI volumes. HOWEVER, if I put a system file on more
than one of the partitions of a single drive, the Mac would ONLY boot from
the first partition on the drive with a system. By "first", I mean the
partition created first with the partitioning software that had a system.
Also, whenever I would access the Startup Device CDEV, whichever drive had
last been specified as the boot drive would have ALL of its partitions
highlighted. This leads me to believe that the Startup Device works on SCSI
number. Of course, I could be wrong.

David	 --- I would have a fancy .sig down here in this space, but I used
	 --- all my really rip-roaring, braindead ideas above in the post.