Date   : Fri, 20 Dec 1985 08:39:00 PST
From   : Ghenis.pasa@XEROX.ARPA
Subject: Re: May I boot from drive B. Please? Pretty please?

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)