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 mount_lofs(1M)						      mount_lofs(1M)




 NAME
      mount, umount - mount and unmount an LOFS file system

 SYNOPSIS
      /usr/sbin/mount [-p|-v]

      /usr/sbin/mount -a [-F lofs] [-eQ]

      /usr/sbin/mount [-F lofs] [-eQrV] [-o specific_options]
	   {special_directory|directory}

      /usr/sbin/mount [-F lofs] [-eQrV] [-o specific_options]
	   special_directory directory

      /usr/sbin/umount [-v] [-V] {special_directory|directory}

      /usr/sbin/umount -a [-F lofs] [-v]

 DESCRIPTION
      The mount command mounts LOFS file systems.  Only superuser can mount
      LOFS file systems.  Other users can use mount to list mounted file
      systems.

      mount, 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.
      special_directory and directory must be specified as absolute path
      names.  If either special_directory or directory is omitted, mount
      attempts to determine the missing value from an entry in the
      /etc/fstab file.	mount can be invoked on any removable file system,
      except /.

      If mount is invoked without any arguments, it lists all the mounted
      file systems from the file system mount table, /etc/mnttab.

      The umount command unmounts mounted file systems.	 Only a superuser
      can unmount file systems.

    Options (mount)
      mount recognizes the following options:

	   -a		  Attempt to mount all file systems described in
			  /etc/fstab.  All optional fields in /etc/fstab
			  must be included and supported.  If -F lofs is
			  specified, all LOFS file systems in /etc/fstab are
			  mounted.  If noauto is specified in an entry's
			  option list, this entry is skipped.  File systems



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 mount_lofs(1M)						      mount_lofs(1M)




			  are not necessarily mounted in the order listed in
			  /etc/fstab.

	   -e		  Verbose mode.	 Write a message to standard output
			  indicating which file system is being mounted.

	   -F lofs	  Specify the LOFS file system type (see fstyp(1M)).

	   -l		  Limit actions to local file systems only.  LOFS is
			  a local file system.

	   -o specific_options
			  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
			  command.

			  The following specific_options are valid on an
			  LOFS file system:

			  defaults	 Use all default options.  When
					 used, this must be the only option
					 specified.

			  ro		 Read-only (see WARNINGS below).

	   -p		  Report the list of mounted file systems in the
			  /etc/fstab format.

	   -Q		  Prevent display of error messages resulting from
			  an attempt to mount already mounted file systems.

	   -r		  Mount the specified file system as read-only (see
			  WARNINGS below).

	   -v		  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.

	   -V		  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 /etc/fstab.	This option
			  allows the user to verify the command line.

    Options (umount)
      The umount command recognizes the following options:





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 mount_lofs(1M)						      mount_lofs(1M)




	   -a		  Attempt to unmount all file systems described in
			  /etc/mnttab.	All optional fields in /etc/mnttab
			  must be included and supported.  If -F lofs file
			  system type is specified, all the LOFS file
			  systems in /etc/mnttab are unmounted.	 File
			  systems are not necessarily unmounted in the order
			  listed in /etc/mnttab.

	   -F lofs	  Specify the LOFS file system type (see fstyp(1M)).

	   -v		  Verbose mode.	 Write a message to standard output
			  indicating which file system is being unmounted.

	   -V		  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 /etc/fstab.	This option
			  allows the user to verify the command line.

 EXAMPLES
      Mount an LOFS file system:

	   mount /usr /tmp/usr

      Mount another LOFS file system:

	   mount -F lofs /usr/sbin /tmp/sbin

 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
      mount was developed by HP, AT&T, the University of California,
      Berkeley, and Sun Microsystems.

 FILES
      /etc/fstab	       Static information about the file systems
      /etc/mnttab	       Mounted file system table

 SEE ALSO
      mount(1M), mount(2), fstab(4), mnttab(4).

 STANDARDS CONFORMANCE




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 mount_lofs(1M)						      mount_lofs(1M)




      mount: SVID3





















































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