mount_lofs(1M)mount_lofs(1M)NAME
mount_lofs: mount, umount - mount and unmount LOFS file systems
SYNOPSIS
specific_options] {special_directory|directory}
specific_options] special_directory directory
{special_directory|directory}
DESCRIPTION
The command mounts LOFS file systems. Only superuser can mount LOFS
file systems. Other users can use to list mounted file systems.
attaches special_directory, a directory from one of the mounted file
systems, to directory, an another directory in one of the mounted file
systems. This enables new file systems to be created, which provide
access to existing directories or file systems using alternate path
names. Both special_directory and directory should already exist.
directory will become the root of the newly mounted LOFS file system,
containing the file system hierarchy under special_directory. spe‐
cial_directory and directory must be specified as absolute path names.
If either special_directory or directory is omitted, attempts to deter‐
mine 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 the mounted file sys‐
tems from the file system mount table,
The command unmounts mounted file systems. Only a superuser can
unmount file systems.
Options (mount)
recognizes the following options:
Attempt to mount all file systems described in
All optional fields in must be included and sup‐
ported. If is specified, all LOFS file systems
in are mounted. If is specified in an entry's
option list, this entry is skipped. File systems
are not necessarily mounted in the order listed
in
Verbose mode. Write a message to standard output indicating
which file system is being mounted.
Specify the LOFS file system type (see
fstyp(1M)).
Limit actions to local file systems only.
LOFS is a local file system.
Specify options specific to the LOFS file system type.
specific_options is a list of comma separated
suboptions and/or keyword/attribute pairs
intended for the LOFS specific module of the com‐
mand.
The following specific_options are valid on an
LOFS file system:
Use all default options.
When used, this must be the only
option specified.
Read-only (see below).
Report the list of mounted file systems in the
format.
Prevent display of error messages
resulting from an attempt to mount already
mounted file systems.
Mount the specified file system as read-only (see
below).
Report the output in a new style.
The new style has the file system type and flags
displayed in addition to the old output. The
directory and special_directory 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 ver‐
ify 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 sup‐
ported. If file system type is specified, all
the LOFS file systems in are unmounted. File
systems are not necessarily unmounted in the
order listed in
Specify the LOFS file system type (see
fstyp(1M)).
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 ver‐
ify the command line.
EXAMPLES
Mount an LOFS file system:
Mount another LOFS file system:
WARNINGS
LOFS file systems provide the user with numerous applications; however,
they may be potentially confusing. LOFS file systems should generally
be created by an experienced user.
For LOFS file systems which are mounted read-only, if the underlying
file system is mounted writable, certain write operations on the LOFS
will succeed. Thus LOFS should not be relied upon to provide a strictly
write-only alternative image of a read-write file system.
AUTHOR
was developed by HP, AT&T, the University of California, Berkeley, and
Sun Microsystems.
FILES
Static information about the file systems
Mounted file system table
SEE ALSOmount(1M), mount(2), fstab(4), mnttab(4).
STANDARDS CONFORMANCEmount_lofs(1M)