drivparm MS-DOS Command

Type: Internal (3.2 and later)


DRIVPARM= /D:(number) [/C] [/F:(form factor)] [/H:(number)] [/I] [/N] [/S:(number)] [/T:(tracks)]

Purpose: Used in the CONFIG.SYS file to set parameters for a disk drive.


Used for special configurations related to disk drives. For more information on the DRIVPARM command, refer to Chapter 6, Tips for Advanced Users.


/D:num – Specifies the physical drive number (0 to 255, where drive A=0, drive B=1, etc.)

/C – Speeds up access to the floppy drive by signally to DOS that the media in a drive may have been changed.

/F:type – Specifies the type of drive being accessed. The following types can be specified: 0 Double-density 360K, 5 1/4-inch floppy disk drives (includes 160K, 180K, 320K and 350K formatted media size. 1 High-density, 1.2M, 5 1/4-inch floppy disk drives. 2 Double-density, 720K, 3 1/2-inch floppy disk drives. 5 Hard disk drives. 6 Tape drives. 7 High-density, 1.44M, 3 1/2-inch floppy disk drives. 8 Read-write optical disk drives. 9 Super-high-density, 2.88M, 3 1/2-inch floppy disk drives.


With DOS Version 6, type 3 (single-density 8-inch floppy disk drives) and type 4 (double-density 8-inch floppy disk drives) are no longer supported. /H:heads Specifies the number (1 to 99) of read/write heads on the disk drive. /I Tells DOS that a 3 1/2-inch disk drive, not supported by the ROM BIOS, is attached to a standard floppy disk drive controller. /N Tells DOS that the drive uses non-removable media. /S:sectors Specifies the number (1 to 99) of sectors per track for the drive’s media.

/T:tracks Specifies the number of tracks per side for the drive’s media.

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