xref: /freebsd/sbin/mount_cd9660/mount_cd9660.8 (revision d37ea99837e6ad50837fd9fe1771ddf1c3ba6002)
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5.\" This code is derived from software donated to Berkeley by
6.\" Christopher G. Demetriou.
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32.\"     @(#)mount_cd9660.8	8.3 (Berkeley) 3/27/94
33.\" $FreeBSD$
34.\"
35.Dd September 26, 2003
36.Dt MOUNT_CD9660 8
37.Os
38.Sh NAME
39.Nm mount_cd9660
40.Nd mount an ISO-9660 file system
41.Sh SYNOPSIS
42.Nm
43.Op Fl begjrv
44.Op Fl C Ar charset
45.Op Fl o Ar options
46.Op Fl s Ar startsector
47.Ar special | node
48.Sh DESCRIPTION
49The
50.Nm
51utility attaches the ISO-9660 file system residing on the device
52.Pa special
53to the global file system namespace at the location indicated by
54.Pa node .
55This command is normally executed by
56.Xr mount 8
57at boot time.
58.Pp
59The options are as follows:
60.Bl -tag -width indent
61.It Fl b
62Relax checking for Supplementary Volume Descriptor Flags field
63which is set to a wrong value on some Joliet formatted disks.
64.It Fl e
65Enable the use of extended attributes.
66.It Fl g
67Do not strip version numbers on files.
68(By default, if there are files with different version numbers on the disk,
69only the last one will be listed.)
70In either case, files may be opened without explicitly stating a
71version number.
72.It Fl j
73Do not use any Joliet extensions included in the file system.
74.It Fl o
75Options are specified with a
76.Fl o
77flag followed by a comma separated string of options.
78See the
79.Xr mount 8
80man page for possible options and their meanings.
81The following cd9660 specific options are available:
82.Pp
83.Bl -tag -width "nostrictjoliet" -compact
84.It Cm extatt
85Same as
86.Fl e .
87.It Cm gens
88Same as
89.Fl g .
90.It Cm nojoliet
91Same as
92.Fl j .
93.It Cm norrip
94Same as
95.Fl r .
96.It Cm nostrictjoliet
97Same as
98.Fl b .
99.El
100.It Fl r
101Do not use any Rockridge extensions included in the file system.
102.It Fl s Ar startsector
103Start the file system at
104.Ar startsector .
105Normally, if the underlying device is a CD-ROM drive,
106.Nm
107will try to figure out the last track from the CD-ROM containing
108data, and start the file system there.  If the device is not a CD-ROM,
109or the table of contents cannot be examined, the file system will be
110started at sector 0.  This option can be used to override the behaviour.
111Note that
112.Ar startsector
113is measured in CD-ROM blocks, with 2048 bytes each.  This is the same
114as for example the
115.Cm info
116command of
117.Xr cdcontrol 1
118is printing.
119It is possible to mount an arbitrary session of a multi-session CD by specifying
120the correct
121.Ar startsector
122here.
123.It Fl C Ar charset
124Specify local
125.Ar charset
126to convert Unicode file names when using Joliet extensions.
127.It Fl v
128Be verbose about the starting sector decisions made.
129.El
130.Sh EXAMPLES
131The following command can be used to mount a Kodak Photo-CD:
132.Pp
133.Dl "mount_cd9660 -o rw -v -s 0 /dev/cd0c /cdrom"
134.Sh SEE ALSO
135.Xr cdcontrol 1 ,
136.Xr mount 2 ,
137.Xr unmount 2 ,
138.Xr fstab 5 ,
139.Xr mount 8
140.Sh BUGS
141POSIX device node mapping is currently not supported.
142.Pp
143Version numbers are not stripped if Rockridge extensions are in use.
144In this case, accessing files that don't have Rockridge names without
145version numbers gets the one with the lowest version number and not
146the one with the highest.
147.Pp
148There is no ECMA support.
149.Sh HISTORY
150The
151.Nm
152utility first appeared in
153.Bx 4.4 .
154.Pp
155The Unicode conversion routine was added by
156.An Ryuichiro Imura Aq imura@ryu16.org
157in 2003.
158