Bernie wrote:
>>Thanks.
I actually have a vdisk.sys file but it complains it's the wrong DOS version.
It's currently running IBM DOS 5 with a few things added from MS-DOS 5
(edit and qbasic actually) earlier it was one of the MS-DOS 3.x versions
(3.1x something... (1 or 5?) IIRC but that was like 1990 or so). I did
start MS-DOS 6.2 on a floppy just to be able to use "defrag" no it.
Another question since the HD is 20MB I could use FAT12 on it couldn't I?
Wouldn't that reduce the size of the allocated units and thereby giving me
more free space? (1024 vs 2048 IIRC)<<
Sorry, Bernie, it won't. FAT12 (HD partitions 16MB and smaller) uses 4K
clusters. 2K is the smallest cluster size you can have on a HD under DOS.
To get your vdisk.sys file to stop complaining, try putting something like
this in an environment variable:
SET OS=IBMDOS5
This took care of a problem that I had when I used some DR-DOS functions with
M$-DOS and it complained that the wrong operating system was present. BTW,
after I got the DR-DOS functions to work once, I didn't need the environment
variable any more.
Roger Turk
Tucson, Arizona USA
