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HFORMAT(1) General Commands Manual HFORMAT(1)
NAME
hformat - create a new HFS filesystem and make it current
SYNOPSIS
hformat [-f] [-l label] destination-path [partition-no]
DESCRIPTION
hformat is used to write a new HFS filesystem to a volume. A UNIX path-
name to the volume's destination must be specified. The destination may
be either a block device or a regular file, but it must already exist
and be writable.
An optional label can be specified to name the volume. The name must be
between 1-27 characters and cannot contain a colon (:). By default, the
volume will be named Untitled.
If the destination medium is partitioned, one partition must be
selected to receive the filesystem. If there is only one HFS partition
on the medium, it will be selected by default. Otherwise, the desired
partition number must be specified (as the ordinal nth HFS partition)
on the command-line. The size of the partition determines the size of
the resulting volume.
Partition number 0 can be specified to format the entire medium as a
single filesystem without a partition map, erasing any existing parti-
tion information. Since this will destroy all the partitions, the -f
option must be specified to force this operation if the medium cur-
rently contains a partition map.
If the medium is not partitioned (or if partition 0 is specified), the
size or capacity of the medium determines the size of the resulting
volume.
The new volume will be empty and will become "current" so subsequent
commands will refer to it. The current working directory for the volume
is set to the root of the volume.
EXAMPLES
% hformat /dev/fd0
If a floppy disk is available as /dev/fd0, this formats the disk
as an HFS volume named Untitled. (N.B. The floppy must already
have received a low-level format by other means.)
% dd if=/dev/zero of=disk.hfs bs=1k count=800
% hformat -l "Test Disk" disk.hfs
This sequence creates an 800K HFS volume image in the file
disk.hfs in the current directory, and names it Test Disk.
% hformat -l "Loma Prieta" /dev/sd2 1
If a SCSI disk is available as /dev/sd2, this initializes the
first HFS partition on the disk (which must already exist) with
a new filesystem, naming the resulting volume Loma Prieta.
% hformat -f /dev/sd2 0
This causes the medium accessible as /dev/sd2 to be reformatted
as a single HFS volume, ignoring and erasing any existing parti-
tion information on the medium. The -f option must be specified
if the medium is currently partitioned; otherwise the command
will fail.
NOTES
This command does not create or alter partition maps, although it can
erase them (as described above). Any partition number specified on the
command line must already exist.
The smallest volume size which can be formatted with hformat is 800K.
SEE ALSO
hfsutils(1), hmount(1)
FILES
$HOME/.hcwd
AUTHOR
Robert Leslie <rob@mars.org>
HFSUTILS 08-Nov-1997 HFORMAT(1)
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