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From: Ghenis.pasa@XEROX.ARPA
Newsgroups: net.micro.cpm
Subject: Re: May I boot from drive B.  Please? Pretty please?
Message-ID: <934@brl-tgr.ARPA>
Date: Fri, 20-Dec-85 11:49:09 EST
Article-I.D.: brl-tgr.934
Posted: Fri Dec 20 11:49:09 1985
Date-Received: Sun, 22-Dec-85 00:48:45 EST
Sender: news@brl-tgr.ARPA
Lines: 3

On an Osborne-1 if you hit " (double quote) at boot time the system will
think that a: is b: and viceversa, hence booting from the physical b:
drive (you still get the a> prompt)