Microsoft KB Archive/29480

MACH 20 README.DOC: M20DRV.SYS Device Driver Parameters PSS ID Number: Q29480 Article last modified on 11-22-1994 PSS database name: HARDWARE

1.00 MS-DOS

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The following information is from the MACH 20 README.DOC file for version 1.0.

M20DRV.SYS DEVICE DRIVER PARAMETERS
The M20DRV.SYS device driver included on the MACH 20 Utilities disk is a customized version of DRIVER.SYS for MACH 20 Disk Plus. DRIVER.SYS comes with DOS 3.2 or later, and allows DOS to recognize non-standard disk types. M20DRV.SYS works with DOS 3.2 or later versions. The parameters that are used by M20DRV.SYS are explained below. For more information on DRIVER.SYS parameters, refer to your DOS manual (version 3.2 or later). The CONFIG.SYS lines for Disk Plus non-360K drives are listed below (INSTALL will add these command lines to your CONFIG.SYS file for you):

Drive Type CONFIG.SYS Command Line 3.5&quot; 720K DEVICE=M20DRV.SYS /D:[n] /T:80 /S:9 /H:2 /F:2 /C 5.25&quot; 1.2MB DEVICE=M20DRV.SYS /D:[n] /T:80 /S:15 /H:2 /F:1 /C 3.5&quot; 1.44MB DEVICE=M20DRV.SYS /D:[n] /T:80 /S:18 /H:2 /F:7 /C

The “n” parameter in brackets is either 0 for drive A, or 1 for drive B. When a 3.5 inch 1.44MB drive is installed, you can format 720K disks in it by calling FORMAT with the /N:9 /T:80 parameters as described in the FORMAT section of the DOS 3.3 manual. Note that the DRIVER.SYS /F:7 parameter for 3.5 1.44MB drives is not listed in the DOS 3.2 documentation. This parameter is available with M20DRV.SYS, however, even if you are using DOS 3.2. When you start your computer, M20DRV.SYS is loaded into memory, and the following message appears:

Loaded External Disk Driver for Drive [X]

where [X] is the drive letter you must use when formatting a disk in either a high- or low-density 3.5 inch drive or a high-density 5.25 inch drive. For example, if you had a 3.5 inch 720K drive installed in the drive B slot and [X] described above was D:, you would format a disk in drive B by typing:

FORMAT D:

at the DOS prompt.

KBCategory: kbref kbhw KBSubcategory: Additional reference words: readme 1.00 noupd

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