xref: /freebsd/sbin/mount_cd9660/mount_cd9660.8 (revision 40a8ac8f62b535d30349faf28cf47106b7041b83)
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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 March 5, 2013
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 "brokenjoliet" -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 brokenjoliet
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.
109If the device is not a CD-ROM,
110or the table of contents cannot be examined, the file system will be
111started at sector 0.
112This option can be used to override the behaviour.
113Note that
114.Ar startsector
115is measured in CD-ROM blocks, with 2048 bytes each.
116This is the same
117as for example the
118.Cm info
119command of
120.Xr cdcontrol 1
121is printing.
122It is possible to mount an arbitrary session of a multi-session CD by specifying
123the correct
124.Ar startsector
125here.
126.It Fl C Ar charset
127Specify local
128.Ar charset
129to convert Unicode file names when using Joliet extensions.
130.It Fl v
131Be verbose about the starting sector decisions made.
132.El
133.Sh EXAMPLES
134The following command can be used to mount a Kodak Photo-CD:
135.Pp
136.Dl "mount_cd9660 -o rw -v -s 0 /dev/cd0 /cdrom"
137.Sh SEE ALSO
138.Xr cdcontrol 1 ,
139.Xr mount 2 ,
140.Xr unmount 2 ,
141.Xr fstab 5 ,
142.Xr mount 8
143.Sh HISTORY
144The
145.Nm
146utility first appeared in
147.Bx 4.4 .
148.Pp
149The Unicode conversion routine was added by
150.An Ryuichiro Imura Aq Mt imura@ryu16.org
151in 2003.
152.Sh BUGS
153POSIX device node mapping is currently not supported.
154.Pp
155Version numbers are not stripped if Rockridge extensions are in use.
156In this case, accessing files that do not have Rockridge names without
157version numbers gets the one with the lowest version number and not
158the one with the highest.
159.Pp
160There is no ECMA support.
161