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Q75226: Upgrading Toshiba T1000 Laptop to MS-DOS 5.0 and later

Article: Q75226
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
=======

The Toshiba T1000 laptop uses ROM DOS Toshiba MS-DOS version 2.11, which is
configured as a 256K read-only drive C. At this time, there is no ROM DOS
upgrade available from Toshiba.

You can use Microsoft MS-DOS 5.0 or later with the Toshiba T1000 laptop. The
T1000 boots from a MS-DOS 5.0 or later system floppy disk. However, you will be
unable to access the ROM DOS drive C. The HARD RAM drive D or the RAM expanded
memory (which is the same thing, just configured differently) is accessible if
you do ONE of the following:

1. Run FDISK. From fixed disk drive 2, delete the two non-DOS partitions and the
  Novell partition, then create a primary DOS partition. Format drive C.

  The HARD RAM drive will now be usable as drive C.

-or-

2. Boot on the ROM DOS. Copy the file EMM.SYS to the MS-DOS 5.0 system disk. Run
  the T1000 SETUP10.EXE program and configure the HARD RAM drive so that there
  is at least 64K bytes not used. On the MS-DOS 5.0 system disk, include MS-DOS
  5.0's RAMDRIVE.SYS and a CONFIG.SYS file that contains at least the
  following:

     CONFIG.SYS
     ----------

     device=emm.sys
     device=ramdrive.sys /a

  The HARD RAM drive will now be accessible as a normal RAM drive.

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

The T1000 will NOT boot from the HARD RAM drive using MS-DOS 5.0 or later.

The Toshiba T1000 laptop should not be confused with the Toshiba T1000 desktop.

The specifications for the Toshiba T1000 laptop are as follows:

  CPU:              80C88 4.77 MHz
  Operating system: MS-DOS 2.11 in 256K ROM
  Drives:           One 720K 3.5-inch drive
  Memory:           512K RAM
                    Optional 768K LIM EMS 3.2 memory card available
  Keyboard:         82 key
  Display:          CGA-compatible LCD

STATUS
======

The product included here is manufactured by Toshiba, a vendor independent of
Microsoft; we make no warranty, implied or otherwise, regarding this product's
performance or reliability.

Additional query words: 6.22 5.00 5.00a 6.00 6.20 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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