Upgrading Toshiba T1000 Laptop to MS-DOS 5.0 and later (75226)

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.

   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