hformat is used to write a new HFS filesystem to a volume. A UNIX pathname to the
volumes 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
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.
0 can be specified to format the entire medium as a single filesystem without a
partition map, erasing any existing partition information. Since this will
destroy all the partitions, the
-f option must be specified to force this operation if the medium currently
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.