Thomas Mueller wrote:

. > Can you read files on the non-formatted M: and N:, or can you copy files 
. > from those non-formatted drives?  So it looks like you have only 6 or 6.3 
. > GB in use.

Yes.  In fact, after I created the L:, M: and N: drives, I forgot to change 
the ramdisk drive location (M:) in the .BAT file that starts arachne.  That 
.BAT file create(s)(ed) a CACHE directory and a TEMP directory on drive M:, 
which it did without any problem on the new, unformatted logical drive on the 
30 GB HD.  Could view and delete the files and directories from the primary 
drive without problems, even using DELTREE.

. > Could DOS, aside from Partition Magic, access beyond 8 GB or 8.4 GB (1024
. > virtual cylinders)?  Maybe I could try to make such a logical partition 
. > on my new computer, using Linux cfdisk and mkdosfs, and see if DR-DOS 7.03
. > recognizes
. > it?

Remember, the HD size limit is a function of the BIOS, not the OS.  The 
Promise DriveMax board has an onboard BIOS which is scanned during the boot 
process (like all installed boards) before the OS is loaded and the BIOS is 
inserted into upper memory, replacing the ROM BIOS info, if any had been 
installed.  Only after the tiny boot(strap) program completes, is the OS 
loaded.

System BIOS dates and associated HD limitations are:

Prior to August 1994       528 MB
Prior to February 1998     2.1 GB
Prior to January 1998      8.4 GB
Prior to June 1999         32 GB

Then, again, the 2.1 GB default value of the drive size may be a limitation 
of ver. 4.1 of Partition Magic, which I got in 1998.  I didn't try to change 
that size as that was more than enough for me to experiment with.

Hope this answers some of your questions.

Roger Turk
Tucson, Arizona  USA

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