Subj : MS-DOS HDDs and partitions
To   : All
From : paulie420
Date : Thu Apr 13 2023 22:07:56

Ok; I always type too much, so I'll try to keep it simple.

I'm working w/ a 486 machine - it has a BIOS from 11/1992; all the HDD options stop at 504MB unless you enter cylinder/heads/sectors.

I'm wanting to switch the IDE HDD to an IDE to CFCard adapter; I bought a 2GB CFCard, and would ultimately like to use a larger one... I changed the 1024/16/63 [cyl/heads/sec...] to 4096/16/63. I can boot the CFCard, but when I run fdisk /mbr, then fdisk - create a main partition, then format c: - it only sees 504MB.

I used a DDO software called OnTrack and that was able to quickly and easily see all 2GB on the CFCard, and partition it into 4 500MB partitions; but only one bootable. 

Many friends tell me MS-DOS 6.22 should be able to see the full 2GB w/o DDO software - am I missing something?

[Computer is a Dolch PAC 60 486DX/66...]



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