mount(1M) mount(1M)
NAME
mount, umount - mount and unmount file systems
SYNOPSIS
FStype]
FStype] specific_options] {special|directory}
FStype] specific_options] special directory
{special|directory}
FStype] host]
DESCRIPTION
The command mounts file systems. Only a superuser can mount file systems. Other users can use to list mounted file systems.
The command attaches special, a removable file system, to directory, a directory on the file tree. directory, which must already exist,
will become the name of the root of the newly mounted file system. special and directory must be given as absolute path names. If either
special or directory is omitted, attempts to determine the missing value from an entry in the file. can be invoked on any removable file
system, except
If is invoked without any arguments, it lists all of the mounted file systems from the file system mount table,
The command unmounts mounted file systems. Only a superuser can unmount file systems.
Options (mount)
The command recognizes the following options:
Attempt to mount all file systems described in
All optional fields in must be included and supported. If the option is specified, all file systems in with that
FStype are mounted. If is specified in an entry's option list, this entry is skipped. File systems are not neces-
sarily mounted in the order listed in
Verbose mode. Write a message to the standard output indicating which file system is being mounted.
Specify FStype, the file system type on which to operate. See fstyp(1M). If this option is not included on the command
line, then it is determined from either by matching special with an entry in that file, or from file system statis-
tics of special, obtained by (see statfsdev(3C)).
Unmount only those file systems listed in
that are remote-mounted from host.
Limit actions to local file systems only.
Specify options specific to each file system type.
specific_options is a list of comma separated suboptions and/or keyword/attribute pairs intended for a FStype-spe-
cific version of the command. See the FStype-specific manual entries for a description of the specific_options sup-
ported, if any.
Report the list of mounted file systems in the
format.
Prevent the display of error messages
that result from an attempt to mount already mounted file systems.
Mount the specified file system as read-only.
Physically write-protected file systems must be mounted in this way or errors occur when access times are updated,
whether or not any explicit write is attempted.
Report the regular output with file system type and flags;
however, the directory and special fields are reversed.
Echo the completed command line,
but perform no other action. The command line is generated by incorporating the user-specified options and other
information derived from This option allows the user to verify the command line.
Options (umount)
The command recognizes the following options:
Attempt to unmount all file systems described in
All optional fields in must be included and supported. If FStype is specified, all file systems in with that FStype
are unmounted. File systems are not necessarily unmounted in the order listed in
Forced unmount.
A forced unmount is one which will occur regardless of activity on the file system. Not supported by all file system
types. See file system type specific man pages for more information. If the file system type man page does not men-
tion forced unmount, then it is not supported for that file system type.
Specify FStype, the file system type on which to operate. If this option is not included on the command line, then it is
determined from by matching special with an entry in that file. If no match is found, the command fails.
Verbose mode. Write a message to standard output indicating which file system is being unmounted.
Echo the completed command line, but perform no other action.
The command line is generated by incorporating the user-specified options and other information derived from This
option allows the user to verify the command line.
EXAMPLES
List the file systems currently mounted:
Mount the HFS file system at directory
Unmount the same file system:
WARNINGS
If you receive a message that says "Can't send after socket shutdown", contact your system administrator to make sure the is running prop-
erly.
AUTHOR
was developed by HP, AT&T, the University of California, Berkeley, and Sun Microsystems.
FILES
Static information about the systems
Mounted file system table
SEE ALSO
fsadm(1M), fstadm(1M), mount_cachefs(1M), mount_cdfs(1M), mount_hfs(1M), mount_lofs(1M), mount_nfs(1M), mount_vxfs(1M), mount(2), fstab(4),
mnttab(4), fs_wrapper(5), quota(5), disk(7).
STANDARDS CONFORMANCE
mount(1M)