1.\" 2.\" Copyright (c) 1992, 1993, 1994 3.\" The Regents of the University of California. All rights reserved. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software donated to Berkeley by 7.\" Jan-Simon Pendry. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. Neither the name of the University nor the names of its contributors 18.\" may be used to endorse or promote products derived from this software 19.\" without specific prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31.\" SUCH DAMAGE. 32.\" 33.\" $FreeBSD: src/sbin/mount_std/mount_std.8,v 1.9.2.7 2003/02/10 12:21:07 des Exp $ 34.\" 35.Dd July 5, 2012 36.Dt MOUNT_STD 8 37.Os 38.Sh NAME 39.Nm mount_std , 40.Nm mount_fdesc , 41.Nm mount_linprocfs , 42.Nm mount_procfs 43.Nd mount 44.Dq standard 45filesystems 46.Sh SYNOPSIS 47.Nm mount_ Ns Ar fsname 48.Op Fl o Ar options 49.Ar "fs" 50.Ar mount_point 51.Sh DESCRIPTION 52The 53.Nm 54command is a generic mechanism for attaching ``standard'' filesystems to 55the filesystem. The 56.Nm 57command currently supports the following filesystems: 58.Nm fdesc , 59.Nm linprocfs 60and 61.Nm procfs . 62A ``standard'' filesystem is one which: 63.Bl -enum -offset indent 64.It 65accepts only the standard 66.Fl o 67options 68.Dq ro 69.Pq Dq rdonly , 70.Dq rw , 71.Dq nodev , 72.Dq noexec , 73.Dq nosuid , 74and 75.Dq union . 76.It 77has a kernel filesystem module name the same as its user-visible name. 78.It 79requires no other special processing on the part of the 80.Nm 81command. 82.El 83.Pp 84The options are as follows: 85.Bl -tag -width indent 86.It Fl o 87Options are specified with a 88.Fl o 89flag followed by a comma separated string of options. 90See the 91.Xr mount 8 92man page for possible options and their meanings. 93.El 94.Pp 95The 96.Nm 97command examines its zeroth command-line argument (the name by which 98it was called) to determine the type of filesystem to be mounted. If 99it is called by a name which does not end in 100.Dq Li _ Ns Ar fsname , 101.Nm 102will assume (for compatibility 103with 104.Xr mount 8 ) 105that the zeroth argument contains only the name of the filesystem type. 106The 107.Nm 108command is normally installed with appropriate links to commands for 109the distributed filesystems which can be mounted in this way; 110for information on the function of each filesystem, see the manual page 111for that specific 112.Nm mount_ Ns Ar fsname 113command. 114.Pp 115Refer to the following manual pages for detailed information 116on these file system: 117.Xr fdesc 5 , 118.Xr linprocfs 5 119and 120.Xr procfs 5 . 121.Sh DIAGNOSTICS 122.Bl -diag 123.It argv[0] must end in _fsname 124.Nm Mount_std 125was called with a zeroth argument of 126.Dq Li mount_std . 127.It vfsload(%s) 128.Nm Mount_std 129was unable to load a kernel module implementing the %s filesystem 130type. 131.It %s filesystem not available 132The specified filesystem type was not present in the kernel and no 133loadable module for it was found. 134.El 135.Sh SEE ALSO 136.Xr mount 2 , 137.Xr unmount 2 , 138.Xr getvfsbyname 3 , 139.Xr fdesc 5 , 140.Xr fstab 5 , 141.Xr linprocfs 5 , 142.Xr procfs 5 , 143.Xr mount 8 144.Sh HISTORY 145The 146.Nm 147utility first appeared in 148.Fx 2.2 . 149Loadable filesystem modules first appeared in 150.Fx 2.0 . 151The 152.Dq fdesc 153and 154.Dq procfs 155filesystem types first appeared in 156.Fx 2.0 ; 157the 158.Dq linprocfs 159filesystem type first appeared in 160.Fx 4.0 . 161.Sh CAVEATS 162None of the ``standard'' filesystems may be NFS-exported. 163