The disk controller for your computer must support the type of floppy
disk drive you want to install.
The ROM BIOS also needs to support the floppy disk drive. Many of the
ROM BIOS versions available today DO NOT support the 1.44 MB floppy
disk drives. (This is because the 1.44 MB floppy disk drive was first
introduced by IBM on their PS/2 systems, and the ROM BIOS of IBM's
PC/AT systems do NOT support 1.44 MB floppy disk drives.) More
versions of the ROM BIOS do support the 720K floppy disk drive. Check
with the original equipment manufacturer (OEM) of your computer to
find out what version of the ROM BIOS is required to support a 1.44 MB
or 720 MB 3.5-inch floppy disk drive.
With an AT system, a setup program is run to tell the ROM BIOS what
types of floppy disk drives are hooked up. If the setup program
supports the floppy disk drive, the DRIVPARM command (or the
DRIVER.SYS command) is not necessary. This is the preferred way to
install the floppy disk drive.
If the floppy disk drive is being installed on an XT system, or if the
drive type is not supported under the AT setup program, you must use
either the DRIVPARM or DRIVER.SYS command. Under MS-DOS Version 3.30,
the DRIVPARM command is not functional, and therefore, the DRIVER.SYS
command must be used. An update to MS-DOS Version 3.30a is available
that allows the use of the DRIVPARM command.
The following are some examples of using DRIVPARM and DRIVER.SYS:
DRIVPARM=/d:01 /f:02 ; For a 720K floppy disk drive on B:
DRIVPARM=/d:01 /f:07 ; For a 1.44K floppy disk drive on B:
DEVICE=DRIVER.SYS /d:01 /f:02 ; For a 720K floppy disk drive on B:
DEVICE=DRIVER.SYS /d:01 /f:07 ; For a 1.44K floppy disk drive on B:
The DRIVER.SYS device driver creates an external reference to the
floppy disk drive if it is configured correctly. DO NOT Reference
Drive B; otherwise, the floppy disk drive will be installed
incorrectly. If you have a hard disk Drive C and you set up
DRIVER.SYS, it will create a reference of D: to the 1.44 MB disk in
Drive B. Use Drive D to access the 1.44 MB floppy disk drive.