Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!attctc!jolnet!hammen
From: hammen@jolnet.ORPK.IL.US (Robert J. Hammen)
Newsgroups: comp.sys.mac.hardware
Subject: Re: SCSI question
Message-ID: <2390@jolnet.ORPK.IL.US>
Date: 14 Dec 89 12:20:16 GMT
References: <1204@mit-amt.MEDIA.MIT.EDU> <1309@key.COM>
Reply-To: hammen@jolnet.UUCP (Robert J. Hammen)
Organization: Personal Publishing
Lines: 13

Once again: Startup Device does NOT work on the Plus. I also believe that
the comment regarding how the Mac boots ("Macs boot from SCSI id 0 by default")
is incorrect. My experiences with the Mac would indicate the following:

Mac Plus: boot from highest numbered SCSI device (6 -> 0)
SE, II, Portable: boot from disk set in "Startup Device" cdev and stored in
PRAM. Otherwise, boot from SCSI ID 0 (special cased, since this is the ID that
the standard Apple internal drives are set. One nice feature is that the Mac
will "wait" for a disk at ID=0 to spin up before it boots (the Rodime 140
internal in my II isn't ready before the Mac is, so it's nice that the Mac
waits for it :-)

Robert Hammen | Technical Editor | Personal Publishing | hammen@ddsw1.mcs.com