5e074e31a2
mount_* programs. While we're at it, collapse the four now-identical mount programs for devfs, fdesc, kernfs, and procfs into links to a new mount_std(8) which can mount any really generic filesystem such as these when called with the appropriate argv[0]. Also, convert the mount programs to use sysexits.h.
135 lines
3.9 KiB
Groff
135 lines
3.9 KiB
Groff
.\"
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.\" Copyright (c) 1992, 1993, 1994
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.\" The Regents of the University of California. All rights reserved.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software donated to Berkeley by
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.\" Jan-Simon Pendry.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $Id$
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.\"
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.Dd May 13, 1996
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.Dt MOUNT_STD 8
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.Os FreeBSD 2.2
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.Sh NAME
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.Nm mount_std
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.Nd mount ``standard'' filesystems
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.Sh SYNOPSIS
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.Nm mount_ Ns Ar fsname
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.Op Fl o Ar options
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.Ar "devfs"
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.Ar mount_point
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.Sh DESCRIPTION
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The
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.Nm
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command is a generic mechanism for attaching ``standard'' filesystems to
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the filesystem. A ``standard'' filesystem is one which:
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.Bl -enum -offset indent
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.It
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accepts only the standard
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.Fl o
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options
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.Dq ro
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.Pq ``rdonly'' ,
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.Dq rw ,
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.Dq nodev ,
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.Dq noexec ,
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.Dq nosuid ,
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and
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.Dq union .
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.It
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has a kernel filesystem module name the same as its user-visible name.
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.It
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requires no other special processing on the part of the
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.Nm mount_std
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command.
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.El
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.Pp
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The
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.Nm
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command examines its zeroth command-line argument (the name by which
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it was called) to determine the type of filesystem to be mounted. If
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it is called by a name which does not end in
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.Dq Li _ Ns Ar fsname ,
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.Nm
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will issue a diagnostic and return an error. The
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.Nm
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command is normally installed with appropriate links to commands for
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the distributed filesystems which can be mounted in this way;
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for information on the function of each filesystem, see the manual page
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for that specific
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.Nm mount_ Ns Ar fsname
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command.
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.Sh DIAGNOSTICS
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.Bl -diag
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.It argv[0] must end in _fsname
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The
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.Nm mount_std
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command was called with a zero'th argument which does not specify a
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filesystem type to be mounted.
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.It vfsload(%s)
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.Nm
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was unable to load a kernel module implementing the %s filesystem
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type.
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.It %s filesystem not available
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The specified filesystem type was not present in the kernel and no
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loadable module for it was found.
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.El
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.Sh SEE ALSO
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.Xr mount 2 ,
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.Xr unmount 2 ,
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.Xr getvfsbyname 3 ,
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.Xr fstab 5 ,
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.Xr mount 8 ,
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.Xr mount_devfs 8 ,
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.Xr mount_fdesc 8 ,
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.Xr mount_kernfs 8 ,
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.Xr mount_procfs 8
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.Sh HISTORY
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The
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.Nm mount_std
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utility first appeared in
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.Fx 2.2 .
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Loadable filesystem modules first appeared in
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.Fx 2.0 .
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The
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.Dq fdesc ,
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.Dq kernfs ,
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and
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.Dq procfs
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filesystem types first appeared in
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.Fx 2.0 ;
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the
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.Dq devfs
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filesystem type first appeared in
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.Fx 2.2 .
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