Mail Archives: opendos/2002/08/04/06:47:40
On 2002-08-03, Michael Snowden wrote:
> 1) In attempt to expand the size of my RAM drive using DOS 6.2, I
> recently purchased considerably more memory for my Compaq Armada
> 7800 lug-along computer. I attempted to expand the size of my
> RAM drive by expanding in my config.sys file the statement
>
> DEVICEHIGH=C:\DOS\RAMDRIVE.SYS 32767 512 224 /E
>
> Unfortunately, it won't expand. Does anyone know how I can make
> a large RAM drive of 100 megabytes? Would it help if I used
> Windows 98 DOS (DOS 7.0)? I will not install Windows on my
> computer.
No, MS-DOS/PC DOS RAMDRIVE.SYS is limited to 32 Mb, just as the
DR-DOS VDISK.SYS is, no matter if you use EMS or XMS. This is still
the case with MS-DOS 8.0 (Windows ME), PC DOS 2000, and DR-DOS 7.03.
You can use FreeDOS' TDSK.EXE 2.4x to get drive sizes up to 64 Mb
(under some conditions, e.g. in most cases you will have to use DR-DOS
rather than MS-DOS/PC DOS for this to work due to the larger logical
sector size of 1024 bytes required). I am working on a version of
TDSK.EXE which overcomes these limitations and will even support more
than 64 Mb of memory in the end, but since this will take much time
due to my lack of time...
Reportedly, XMSDISK already supports RAM disks larger than 64 Mb,
so I suggest to give this a try.
Greetings,
Matthias
--
<mailto:Matthias DOT Paul AT post DOT rwth-aachen DOT de>; <mailto:mpaul AT drdos DOT org>
http://www.uni-bonn.de/~uzs180/mpdokeng.html; http://mpaul.drdos.org
"Programs are poems for computers."
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