Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!ames!uakari.primate.wisc.edu!aplcen!ginosko!uunet!ncrlnk!ncrwic!encad!entec!jlohmeye
From: jlohmeye@entec.Wichita.NCR.COM (John Lohmeyer)
Newsgroups: comp.periphs
Subject: Re: Problem with Mac Plus booting off a Newbury drive
Summary: Apple requires the SCSI drive to violate the SCSI standard
Message-ID: <389@entec.Wichita.NCR.COM>
Date: 12 Sep 89 15:40:38 GMT
References: <3436@deimos.cis.ksu.edu>
Reply-To: j.lohmeyer@Wichita.NCR.COM (John Lohmeyer)
Organization: NCR Corporation, Wichita, KS
Lines: 20

In article <3436@deimos.cis.ksu.edu> paryavi@harris.cis.ksu.edu (Saiid Paryavi) writes:
>My Mac Plus simply refuses to boot off of my Newbury 3380 drive.

 ... What Saiid tried with no success is deleted ...

>Does any of you SCSI gurus out there recognize this problem and can suggest
>a solution?

I understand that Macs will not boot if the drive reports CHECK CONDITION
status to the first I/O (as required by SCSI).  Some drive vendors have
jumpers or a special mode page to disable the reporting of unit attention
so that their drives can be used on Macs.  If the Mac will talk to your drive
after booting on some other drive, this is probably your problem.


-- 
John Lohmeyer         J.Lohmeyer@Wichita.NCR.COM
NCR Corp.             uunet!ncrlnk!ncrwic!entec!jlohmeye
3718 N. Rock Rd.      Voice: 316-636-8703
Wichita, KS 67226     SCSI BBS 316-636-8700 300/1200/2400 24 hours