1.\" Copyright (c) 1993, 1994
2.\"     The Regents of the University of California.  All rights reserved.
3.\" All rights reserved.
4.\"
5.\" This code is derived from software donated to Berkeley by
6.\" Christopher G. Demetriou.
7.\"
8.\" Redistribution and use in source and binary forms, with or without
9.\" modification, are permitted provided that the following conditions
10.\" are met:
11.\" 1. Redistributions of source code must retain the above copyright
12.\"    notice, this list of conditions and the following disclaimer.
13.\" 2. Redistributions in binary form must reproduce the above copyright
14.\"    notice, this list of conditions and the following disclaimer in the
15.\"    documentation and/or other materials provided with the distribution.
16.\" 4. Neither the name of the University nor the names of its contributors
17.\"    may be used to endorse or promote products derived from this software
18.\"    without specific prior written permission.
19.\"
20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30.\" SUCH DAMAGE.
31.\"
32.\"     @(#)mount_cd9660.8	8.3 (Berkeley) 3/27/94
33.\" $FreeBSD: src/sbin/mount_cd9660/mount_cd9660.8,v 1.12.2.6 2003/02/24 00:56:41 trhodes Exp $
34.\" $DragonFly: src/sbin/mount_cd9660/mount_cd9660.8,v 1.4 2008/07/27 22:17:48 thomas Exp $
35.\"
36.Dd September 12, 2009
37.Dt MOUNT_CD9660 8
38.Os
39.Sh NAME
40.Nm mount_cd9660
41.Nd mount an ISO-9660 file system
42.Sh SYNOPSIS
43.Nm
44.Op Fl begjrv
45.Op Fl C Ar charset
46.Op Fl o Ar options
47.Op Fl s Ar startsector
48.Ar special node
49.Sh DESCRIPTION
50The
51.Nm
52utility attaches the ISO-9660 file system residing on the device
53.Pa special
54to the global file system namespace at the location indicated by
55.Pa node .
56This command is normally executed by
57.Xr mount 8
58at boot time.
59.Pp
60The options are as follows:
61.Bl -tag -width indent
62.It Fl b
63Relax checking for Supplementary Volume Descriptor Flags field
64which is set to a wrong value on some Joliet formatted disks.
65.It Fl e
66Enable the use of extended attributes.
67.It Fl g
68Do not strip version numbers on files.
69(By default, if there are files with different version numbers on the disk,
70only the last one will be listed.)
71In either case, files may be opened without explicitly stating a
72version number.
73.It Fl j
74Do not use any Joliet extensions included in the file system.
75.It Fl o
76Options are specified with a
77.Fl o
78flag followed by a comma separated string of options.
79See the
80.Xr mount 8
81man page for possible options and their meanings.
82The following cd9660 specific options are available:
83.Pp
84.Bl -tag -width "nostrictjoliet" -compact
85.It Cm extatt
86Same as
87.Fl e .
88.It Cm gens
89Same as
90.Fl g .
91.It Cm nojoliet
92Same as
93.Fl j .
94.It Cm norrip
95Same as
96.Fl r .
97.It Cm nostrictjoliet
98Same as
99.Fl b .
100.El
101.It Fl r
102Do not use any Rockridge extensions included in the file system.
103.It Fl s Ar startsector
104Start the file system at
105.Ar startsector .
106Normally, if the underlying device is a CD-ROM drive,
107.Nm
108will try to figure out the last track from the CD-ROM containing
109data, and start the file system there.
110If the device is not a CD-ROM,
111or the table of contents cannot be examined, the file system will be
112started at sector 0.
113This option can be used to override the behaviour.
114Note that
115.Ar startsector
116is measured in CD-ROM blocks, with 2048 bytes each.
117This is the same
118as for example the
119.Cm info
120command of
121.Xr cdcontrol 1
122is printing.
123It is possible to mount an arbitrary session of a multi-session CD by specifying
124the correct
125.Ar startsector
126here.
127.It Fl C Ar charset
128Specify local
129.Ar charset
130to convert Unicode file names when using Joliet extensions.
131.It Fl v
132Be verbose about the starting sector decisions made.
133.El
134.Sh EXAMPLES
135The following command can be used to mount a Kodak Photo-CD:
136.Pp
137.Dl "mount_cd9660 -o rw -v -s 0 /dev/cd0c /cdrom"
138.Sh SEE ALSO
139.Xr cdcontrol 1 ,
140.Xr mount 2 ,
141.Xr unmount 2 ,
142.Xr fstab 5 ,
143.Xr mount 8
144.Sh HISTORY
145The
146.Nm
147utility first appeared in
148.Bx 4.4 .
149.Sh BUGS
150POSIX device node mapping is currently not supported.
151.Pp
152Version numbers are not stripped if Rockridge extensions are in use.
153In this case, accessing files that do not have Rockridge names without
154version numbers gets the one with the lowest version number and not
155the one with the highest.
156.Pp
157There is no ECMA support.
158