mformat—Add an MS-DOS filesystem to a low-level formatted disk

mformat [ -t tracks ] [ -h heads ] [ -s sectors ] [ -l volume label ] [ -S sizecode ] [ -2 sectors on track 0 ] [ -M software sector size ] [ -a ][-X ][-C ][-H hidden sectors ] drive:

mformat adds a minimal MS-DOS filesystem (boot sector, FAT, and root directory) to a disk that has already been formatted by a UNIX low-level format.
The follow options are supported: (The S, 2, 1, and M options may not exist if this copy of mtools has been compiled without the USE_2M option).

tThe number of tracks (not cylinders).
hThe number of heads (sides).
sThe number of sectors per track. If the 2m option is given, number of 512-byte sector equivalents on generic tracks (that is, not head 0 track). If the 2m option is not given, number of physical sectors per track (which may be bigger than 512 bytes).
lAn optional volume label.
SThe sizecode. The size of the sector is 2 ˆ (sizecode + 7).
22m format. The parameter to this option describes the number of sectors on track 0, head 0. This option is recommended for sectors bigger than normal.
1Don’t use a 2m format, even if the current geometry of the disk is a 2m geometry.
MSoftware sector size. This parameter describes the sector size in bytes used by the MS-DOS filesystem. By default it is the physical sector size.
aIf this option is given, an Atari-style serial number is generated. Ataris store their serial number in the OEM label.
XFormats the disk as an Xdf disk. Xdf disks are used by OS/2. This format can hold 1756Kb, and is faster than the equivalent 2m formats. The disk has first to be low-level formatted using the xdfcopy utility included in the fdutils package.
CCreates the disk image file to install the MS-DOS filesystem on it. Obviously, this is useless on physical devices such as floppies and hard disk partitions.
HNumber of hidden sectors. This parameter is useful for formatting hard disk partitions, which are not aligned on track boundaries (in other words, first head of first track doesn’t belong to the partition, but contains a partition table). In that case the number of hidden sectors is in general the number of sectors per cylinder. This is untested.
nSerial number.

To format a disk at a density other than the default, you must supply (at least) those command-line parameters that are different from the default.
Mformat returns 0 on success or 1 on failure.

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