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Q80434: DRIVPARM Must Be Used with Tandy 1000HX, 1000TX, 1400LT/HD

Article: Q80434
Product(s): Microsoft Disk Operating System
Version(s): MS-DOS:5.x,6.0,6.2,6.21,6.22
Operating System(s): 
Keyword(s): 
Last Modified: 17-DEC-2000

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The information in this article applies to:

- Microsoft MS-DOS operating system versions 5.0, 5.0a, 6.0, 6.2, 6.21, 6.22 
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SUMMARY
=======

Tandy Corporation has confirmed that Tandy 1000HX, 1000TX, 1400HD, and 1400LT
computers with 3.5-inch disk drives may not format disks properly after
upgrading to MS-DOS 5.0 or later.

For proper floppy drive use after installing MS-DOS 5.0 or later, the DRIVPARM
statement must be used with the /I switch in the CONFIG.SYS file.

MORE INFORMATION
================

After installing the MS-DOS 5 Upgrade on a Tandy 1000HX, 1000TX, or 1400LX
computer, the computer attempts to format a 3.5-inch disk as a 360K disk.

Using other size parameters results in the following error message:

  Invalid Parameter, This Mode Not Supported, Formatting 360K

According to Tandy Corp., this problem can be worked around by using the /I
switch with a DRIVPARM statement in the CONFIG.SYS file. Using DRIVER.SYS or
DRIVPARM alone will not eliminate the problem.

The following statement should be placed in the CONFIG.SYS file:

     drivparm=/d:[drive number] /f:[size of drive] /i

The /I switch indicates an electronically compatible disk drive.

The Tandy products included here are manufactured by a vendor independent of
Microsoft; we make no warranty, implied or otherwise, regarding these products'
performance or reliability.

REFERENCES
==========

"Microsoft MS-DOS User's Guide and Reference," version 5.0, pages 455-456

Additional query words: 6.22 5.00 5.00a 6.00 6.20 hd lx lt 1000 1400 3rdparty

======================================================================
Keywords          :  
Technology        : kbMSDOSSearch kbMSDOS621 kbMSDOS622 kbMSDOS620 kbMSDOS600 kbMSDOS500 kbMSDOS500a
Version           : MS-DOS:5.x,6.0,6.2,6.21,6.22

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