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From: tr@wind.bellcore.com (tom reingold)
Newsgroups: comp.sys.ibm.pc
Subject: How do you make DOS 3.3 work on an old AT?
Message-ID: <1926@bellcore.bellcore.com>
Date: Tue, 11-Aug-87 17:41:03 EDT
Article-I.D.: bellcore.1926
Posted: Tue Aug 11 17:41:03 1987
Date-Received: Thu, 13-Aug-87 05:50:55 EDT
Sender: news@bellcore.bellcore.com
Reply-To: tr@wind.UUCP (tom reingold)
Distribution: world
Organization: BellCoRe (Bell Communications Research)
Lines: 25

There was discussion on the net from people who were having trouble
bringing up PC-DOS 3.3 from their hard disks.  It seems that it
would boot from a floppy but not a hard.  I ignored those messages
because they did not pertain to me.  Now they do and I would like
to know how the problems were resolved.

The system is an old AT, made by IBM.  It has the old keyboard and
I would bet that it is the original system, with a 6 Mhz crystal.
I have booted DOS 3.1 and 3.2, both from a floppy.  Then I typed

	A>sys c:
	A>copy command.com c:

The computer would not boot from the hard disk, either with
Ctrl-Alt-Delete or with the red switch.  I rebooted from a floppy,
which it would do gladly with any version of DOS, be it 3.1, 3.2,
or 3.3.  I then renamed the config.sys file to something else to
make sure that that was not a problem.  Still nothing.

Any ideas?  Thanks much.

Tom Reingold
INTERNET:       tr@bellcore.bellcore.com
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