What the DRIVPARM command line in CONFIG.SYS does - China DOS Union Forum

HD-COPY can format a floppy to 2 sides, 84 tracks, 21 sectors; I usually use up to 82 tracks.
In DOS7.0, a floppy with 21 sectors per track can boot the system; under DOS6.22, only disks with 18 sectors per track can boot.
After booting from drive C, only if the following is added to CONFIG.SYS:
DRIVPARM=/D:0 /F:7 /H:2 /S:21 /T:84
will NDD, SCANDISK, and DEFRAG report all sectors for floppies with more than 80 tracks and more than 18 sectors; otherwise, there are only 2880.
Under DOS6.22, if this line is not loaded, you may even get COPY file errors if things go badly.

If you make a super boot disk, it can reach 1.72M.

Floor1　liangqi	Posted 2003-07-18 00:00
初级用户　Posts 12　Credits 135
HD-COPY can format a floppy to 2 sides, 84 tracks, 21 sectors; I usually use up to 82 tracks. In DOS7.0, a floppy with 21 sectors per track can boot the system; under DOS6.22, only disks with 18 sectors per track can boot. After booting from drive C, only if the following is added to CONFIG.SYS: DRIVPARM=/D:0 /F:7 /H:2 /S:21 /T:84 will NDD, SCANDISK, and DEFRAG report all sectors for floppies with more than 80 tracks and more than 18 sectors; otherwise, there are only 2880. Under DOS6.22, if this line is not loaded, you may even get COPY file errors if things go badly. If you make a super boot disk, it can reach 1.72M.