mformat man page on Tru64

mformat man page on Tru64

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mformat(1)							    mformat(1)

NAME
       mformat	-  mtools utility to add a DOS file system to a low-level for‐
       matted diskette

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

OPTIONS
       Specifies the number of tracks (not cylinders) on the diskette.	Speci‐
       fies 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 format‐
       ted.  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:

       ───────────────────────────────────────────────────────────────
       Media		Capacity	     Tracks   Heads   Sectors
       type    KB/MB	Bytes	   Sectors   -t	      -h      -s
       ───────────────────────────────────────────────────────────────
       DD      720KB	737280	   1440	     80	      2	      9
       HD      1.44MB	1474560	   2880	     80	      2	      18
       ED      2.88MB	2949120	   5760	     80	      2	      36
       ───────────────────────────────────────────────────────────────

       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/rdisk/dsk/6a 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 con‐
       tents 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/disk/floppy 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)

								    mformat(1)

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