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From: dave@westmark.UUCP (Dave Levenson)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Reading Hard disk with different DOS versions
Message-ID: <142@westmark.UUCP>
Date: Sat, 22-Aug-87 19:12:45 EDT
Article-I.D.: westmark.142
Posted: Sat Aug 22 19:12:45 1987
Date-Received: Sun, 23-Aug-87 13:43:09 EDT
References: <680@cblpf.ATT.COM>
Distribution: na
Organization: Westmark, Inc., Warren, NJ, USA
Lines: 23
Summary: Did you reformat?

In article <680@cblpf.ATT.COM>, jpw@cblpf.ATT.COM (Mike Vehonsky) writes:
> 	We just loaded 3.2 on our system (PC6300, 10 Meg).  If
> 	you boot version 2.11 or 3.1 from floppy, and try to
> 	access the C: drive, you get an "Invalid drive specification".

> 	...another machine (also running 3.2) CAN be
> 	booted with a different version and read the hard drive just
> 	fine.

You just loaded MS-DOS version 3.2 on your system.  You probably
re-formatted your hard disk in the process.  This is useful, because
it allows you to use the smaller cluster size, but it is optional. 

If you had an earlier version of MS-DOS, the 3.2 installation
process allows you to skip the re-formatting step and just replace
the system files.  This is probably what was done with "another
machine" whose hard disk is still accessible under older DOS
versions.
-- 
Dave Levenson
Westmark, Inc.
Warren, NJ USA
{rutgers | clyde | mtune | ihnp4}!westmark!dave