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_linprocfs , 41.Nm mount_procfs 42.Nd mount 43.Dq standard 44filesystems 45.Sh SYNOPSIS 46.Nm mount_ Ns Ar fsname 47.Op Fl o Ar options 48.Ar "fs" 49.Ar mount_point 50.Sh DESCRIPTION 51The 52.Nm 53command is a generic mechanism for attaching ``standard'' filesystems to 54the filesystem. The 55.Nm 56command currently supports the following filesystems: 57.Nm linprocfs 58and 59.Nm procfs . 60A ``standard'' filesystem is one which: 61.Bl -enum -offset indent 62.It 63accepts only the standard 64.Fl o 65options 66.Dq ro 67.Pq Dq rdonly , 68.Dq rw , 69.Dq nodev , 70.Dq noexec , 71and 72.Dq nosuid . 73.It 74has a kernel filesystem module name the same as its user-visible name. 75.It 76requires no other special processing on the part of the 77.Nm 78command. 79.El 80.Pp 81The options are as follows: 82.Bl -tag -width indent 83.It Fl o 84Options are specified with a 85.Fl o 86flag followed by a comma separated string of options. 87See the 88.Xr mount 8 89man page for possible options and their meanings. 90.El 91.Pp 92The 93.Nm 94command examines its zeroth command-line argument (the name by which 95it was called) to determine the type of filesystem to be mounted. If 96it is called by a name which does not end in 97.Dq Li _ Ns Ar fsname , 98.Nm 99will assume (for compatibility 100with 101.Xr mount 8 ) 102that the zeroth argument contains only the name of the filesystem type. 103The 104.Nm 105command is normally installed with appropriate links to commands for 106the distributed filesystems which can be mounted in this way; 107for information on the function of each filesystem, see the manual page 108for that specific 109.Nm mount_ Ns Ar fsname 110command. 111.Pp 112Refer to the following manual pages for detailed information 113on these file system: 114.Xr linprocfs 5 115and 116.Xr procfs 5 . 117.Sh DIAGNOSTICS 118.Bl -diag 119.It argv[0] must end in _fsname 120.Nm Mount_std 121was called with a zeroth argument of 122.Dq Li mount_std . 123.It vfsload(%s) 124.Nm Mount_std 125was unable to load a kernel module implementing the %s filesystem 126type. 127.It %s filesystem not available 128The specified filesystem type was not present in the kernel and no 129loadable module for it was found. 130.El 131.Sh SEE ALSO 132.Xr mount 2 , 133.Xr unmount 2 , 134.Xr getvfsbyname 3 , 135.Xr fstab 5 , 136.Xr linprocfs 5 , 137.Xr procfs 5 , 138.Xr mount 8 139.Sh HISTORY 140The 141.Nm 142utility first appeared in 143.Fx 2.2 . 144Loadable filesystem modules first appeared in 145.Fx 2.0 . 146The 147.Dq procfs 148filesystem type first appeared in 149.Fx 2.0 ; 150the 151.Dq linprocfs 152filesystem type first appeared in 153.Fx 4.0 . 154.Sh CAVEATS 155None of the ``standard'' filesystems may be NFS-exported. 156