[Coladam] Change Floppy Drive Letters or Create Virtual Drives via "subst" Command.

Robert Miller Robert.E.Miller at verizon.net
Sat Feb 21 15:01:07 CET 2009


 
See if your BIOS allows you to activate the 'Swap Floppy' setting. Remember
when your system might have had both a 5-1/4" and a 3-1/2" drive?
Or Check if your floppy cable has connections for two drives & try the other
one.  ('A' is always the one at the end of the cable 'B' is the middle one.

You can probably also use the subst command which should still be available
in XP.
Here's a good site for that one: http://www.computerhope.com/substhlp.htm

You actually got me curious enough to try it.  Here I have created a B:\
drive since I do have a floppy A:\ already:

A:\>c:				#Just changing from A: to C:
C:\>mkdir testb			#Creating a subdirectory to test inside
C:\>cd testb
C:\testb>mkdir b_is_here	#placing an additional subdirectory
"b_is_here" just to help identify where I end up.
C:\testb>subst b: .		#running the subst command to add a b:\
drive at the location C:\\testb>
C:\testb>b:				#change to B:\>
B:\>dir				#run a directory listing and check for
subdirectory "b_is_here" entry
 Volume in drive B has no label.
 Volume Serial Number is 74BB-60E2

 Directory of B:\
02/21/2009  08:39 AM    <DIR>          .
02/21/2009  08:39 AM    <DIR>          ..
02/21/2009  08:39 AM    <DIR>          b_is_here	#<<< and there it
is.  Success!
               0 File(s)              0 bytes
               3 Dir(s)  13,901,336,576 bytes free
B:\>					#And I am left at the B:\> prompt

#And finally to remove the virtual drive B...

C:\testb>subst b: /D		#deletes b:
C:\testb>b:			 	#Prove by trying to go back to B:>\
The system cannot find the drive specified.
C:\testb>				#And we are left at C: since B: no
longer exists.

Hope that works for you.

Bob

  

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Sent: Saturday, February 21, 2009 6:00 AM
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Subject: Coladam Digest, Vol 44, Issue 11

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Today's Topics:

   1. drive letters (Joe Blenkle)


----------------------------------------------------------------------

Message: 1
Date: Sat, 21 Feb 2009 02:22:42 -0800
From: "Joe Blenkle" <jblenkle at sacnews.net>
Subject: [Coladam] drive letters
To: <coladam at adamcon.org>
Message-ID: <000601c9940e$5536af70$6501a8c0 at joeblenk>
Content-Type: text/plain;	charset="iso-8859-1"

OK, I've been trying to figure out how to transfer some basic programs and
midi files off my PC and onto ADAM disks and suddenly, right under my nose,
I find a program to do it.

PC2ADAM....duh...but there is a catch. It requires the ADAM disk be in drive
A: and on both my computers, the 5.25" drive is my drive B:

I seem to remember in the distant past there used to be a command in DOS
that would switch your A: and B: drive designations temporarily, but I can't
find any mention of it anywhere so it may be part of a very old version of
DOS and no longer valid. But does anyone remember what it was?

Also, I have been told that if I switch the order my drives are hooked to
the cable inside my computer, this will change the drive letter for each
drive -- although I don't remember this being a fact - it's been quite some
time since I've messed with the innards of my computer. Does anyone know for
sure before I open it up? My older computer I do this stuff on is really a
pain to open up and close back up.

thanks

Joe B.

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