Message-Id: <2.2.16.19980227011807.45af64dc@mustafa.hempseed.com>
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Date: Thu, 26 Feb 1998 17:18:07 -0800
To: opendos AT delorie DOT com
From: Robert Sears <bobbitchin AT hempseed DOT com>
Subject: Re:  saving msdos as backup
Precedence: bulk

But when the system boots how will it decide what boot files to load? From
what I understand dos boots in this order

After bois boots and reads MBR

1. load io.sys
2. load msdos.sys
3. load command.com
4. load config.sys (if present)
5. run autoexec.bat (if present)

So I dont understand how the command.com thing would even be an issue unless
you were using some kind of a boot loader in the MBR to tell the system what
boot files to use in the first place.


At 05:03 PM 2/26/98 -0700, you wrote:
>Travis Siegel <tsiegel AT softcon DOT com> writes:
>
>>Since msdos and opendos use different names for their system files
>>(msdos.sys and io.sys as opposed to ibmio.com, and ibmdos.com) It's easy
>>to have both msdos and opendos on the same hd.  All you need do is rename
>>the appropriate command.com file depending on which dos you'd like to boot
>>into.
>
>You don't even need to rename COMMAND.COM.  Just store each one in its
>appropriate directory (\DOS or \OPENDOS or \DRDOS) and set up your SHELL=
>statements in CONFIG.SYS and DCONFIG.SYS accordingly.
>
>And it's even easier yet for 4DOS users; they can use the same shell with
>most versions of MS/IBM and DR/Novell/OpenDOS.
>
>raster AT highfiber DOT com
>
>