Content-type: text/html Man page of mformat

mformat

Section: User Commands (1)
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NAME

mformat - mtools utility to add a DOS file system to a low-level formatted diskette  

SYNOPSIS

mformat [-t tracks] [-h heads] [-s vectors] [-l volumelabel] drive:


 

OPTIONS

Specifies the number of tracks (not cylinders) on the diskette. Specifies the number of heads (sides) on the diskette. Specifies the number of sectors per track. Specifies the volume label. This is an optional option.
 

DESCRIPTION

Note

You must specify the floppy disk storage device that is to be formatted. If you do not specify a device, or if a device is not found, the command may incorrectly format a SCSI device which could be a system or data disk.

The mformat command adds a minimal DOS compatible file system (boot sector, FAT, and root directory) to a UNIX formatted diskette. If the diskette is unformatted, you must low-format the disk. You can do this with a PC system, or on Tru64 UNIX using either the scu utility or the fddisk utility, depending on your floppy drive. Tru64 UNIX supports both FDI and SCSI attached 3.5" floppy drives with DD, HD, or ED media. Not all floppy drives are compatible with ED media.

The following track/head/sector values are supported:


MediaCapacityTracksHeadsSectors
typeKB/MBBytesSectors-t-h-s

DD720KB73728014408029
HD1.44MB1474560288080218
ED2.88MB2949120576080236

To format a diskette for other than the ED 2.88MB default capacity, you must specify the number of sectors per track with the -s option. No error is returned if you use mformat to put an ED file system onto an HD floppy, but you will get errors from other utilities if you try to write beyond the physical end of the media.
 

RESTRICTIONS

The following restrictions apply: The mformat command requires a low-level format utility from UNIX. The mformat command does not detect (or record) bad block information.
 

EXIT STATUS

The following exit values are returned: Success. Failure.
 

EXAMPLES

In the following example, a SCSI floppy diskette is formatted at the ED 2.88MB capacity, then a DOS file system is initialized with mformat: $ /sbin/scu -f /dev/rrz6a format density ED $ mformat a: In the following example, an FDI floppy diskette is formatted at the HD 1.44MB capacity, then a DOS file system is initialized with mformat, a file is copied to the diskette, and the mdir command is used to check the contents of the diskette. The mlabel command is used to add a label and mdir is used to again check the diskette contents. Finally, a DD file system is placed on the diskette, mcopy is used to place a file on it, and mdir is used to verify the diskette contents:

$ fddisk -fmt /dev/rfd0a

NOTE: Setting interleave factor to ``-i2:4''.
       Use ``-i<nnn>[:<ccc>]'' option to override. Disk type: 3.50 inch, HD (1.44MB) Number of sectors per track: 18 Number of surfaces: 2 Number of cylinders: 80 Sector size: 512 interleave factor: 2:4 Formatting disk... Percentage complete:
 Format complete, checking...
 Quick check of disk passes OK.

$ mformat -s 18 a: $ mcopy README a:

Copying README

$ mdir a:

Volume in drive A has no label Directory for A:/

README 769 6-04-97 8:59a
       1 File(s)     1456640 bytes free

$ mlabel a: Volume in drive A is unlabeled Enter the new volume label (11 characters): hddisk

$ mdir a:Volume in drive A is hddisk Directory for A:/

README 769 6-04-97 8:59a
       1 File(s)     1456640 bytes free

$ mformat -s 9 -l dddisk a: $ mcopy README a:README.1 $ mdir a:


 Volume in drive A is dddisk
 Directory for A:/

README 1 769 6-04-97 9:16a
       1 File(s)     729088 bytes free In the following example, an unformatted 2.8Mb floppy diskette is formatted using the scu command, followed by the mformat command. Once it is formatted by both the scu and mformat commands, it is ready for use: $ /sbin/scu -f /dev/fddrive format density ED $ mformat -t 80 -h 2 -s 36 a:


 

FILES

Executable file
 

SEE ALSO

Commands: mlabel(1), mtools(1)

Utilities: fddisk(8), scu(8)

Floppy disk interface: fd(7)


 

Index

NAME
SYNOPSIS
OPTIONS
DESCRIPTION
RESTRICTIONS
EXIT STATUS
EXAMPLES
FILES
SEE ALSO

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Time: 02:42:46 GMT, October 02, 2010