-F type

The type of file system. If you do not use this option, the command looks for an entry which matches special or mount-point in the /etc/vfstab file. Otherwise, the default is taken from the file /etc/default/fs for local file systems and from the file /etc/dfs/fstypes for remote file systems.

-V

An instruction to echo the completed command line. The echoed line may include additional information derived from /etc/vfstab. Use this option to verify and validate the command line. The command is not executed.

generic-options

Options common to different types of file systems. 

-o specific-options

A list of options specific to the type of file system. The list must have the following format: -o followed by a space, followed by a series of keyword [=value] pairs separated by commas with no intervening spaces.

special|mount-point

The file system indentification. This name must be either the mount point or the special device file for the slice holding the file system. For some commands, the special file must be the raw (character) device and for other commands it must be the block device. See "Understanding Disk Device Names" on page 287 for more information about disk device names. In some cases, this argument is used as a key to search the file /etc/vfstab for a matching entry from which to obtain other information. In most cases, this argument is required and must come immediately after specific-options. However, it is not required when you want a command to act on all the file systems (optionally limited by type) listed in the /etc/vfstab file.

operands

Arguments specific to a type of file system. See the specific manual page of the command (for example, mkfs_ufs(1M)) for a detailed description.