Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!batcomputer!cornell!uw-beaver!mit-eddie!apollo!angelini
From: angelini@apollo.HP.COM (Bob Angelini)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Both hard drives on to boot Mac Plus?
Message-ID: <50a75aa7.20b6d@apollo.HP.COM>
Date: 29 Mar 91 13:01 GMT
References: <1991Mar27.050325.3851@schaefer.math.wisc.edu>
Sender: root@apollo.HP.COM
Lines: 14

>I just connected two hard drives to my Mac Plus, and now I can't
>boot from one until they are both turned on.  Then the one with
>the higher SCSI id boots.  Either one connected individually
>will boot, it's just that when both are connected, they both
>have to be turned on get the Mac even to recognize their
>existences.


To begin with only the drive at the physical end of the cable should be terminated
not both. If this doesn't fix the problem it may just be that the unpowered drive
is loading down the bus so that the other drive isn't seen. As for the higher ID
booting, thats because the higher ID has priority over the lower. 

Bob