kernel - Fix mprace in kern_objcache
[dragonfly.git] / sbin / mount_cd9660 / mount_cd9660.8
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6.\" Christopher G. Demetriou.
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36.\" @(#)mount_cd9660.8 8.3 (Berkeley) 3/27/94
37.\" $FreeBSD: src/sbin/mount_cd9660/mount_cd9660.8,v 1.12.2.6 2003/02/24 00:56:41 trhodes Exp $
905b3a2a 38.\" $DragonFly: src/sbin/mount_cd9660/mount_cd9660.8,v 1.4 2008/07/27 22:17:48 thomas Exp $
984263bc 39.\"
8e7bb349 40.Dd September 12, 2009
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41.Dt MOUNT_CD9660 8
42.Os
43.Sh NAME
44.Nm mount_cd9660
45.Nd mount an ISO-9660 file system
46.Sh SYNOPSIS
47.Nm
48.Op Fl begjrv
8e7bb349 49.Op Fl C Ar charset
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50.Op Fl o Ar options
51.Op Fl s Ar startsector
905b3a2a 52.Ar special node
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53.Sh DESCRIPTION
54The
55.Nm
56utility attaches the ISO-9660 file system residing on the device
57.Pa special
58to the global file system namespace at the location indicated by
59.Pa node .
60This command is normally executed by
61.Xr mount 8
62at boot time.
63.Pp
64The options are as follows:
65.Bl -tag -width indent
66.It Fl b
67Relax checking for Supplementary Volume Descriptor Flags field
68which is set to a wrong value on some Joliet formatted disks.
69.It Fl e
70Enable the use of extended attributes.
71.It Fl g
72Do not strip version numbers on files.
73(By default, if there are files with different version numbers on the disk,
74only the last one will be listed.)
75In either case, files may be opened without explicitly stating a
76version number.
77.It Fl j
78Do not use any Joliet extensions included in the file system.
79.It Fl o
80Options are specified with a
81.Fl o
82flag followed by a comma separated string of options.
83See the
84.Xr mount 8
85man page for possible options and their meanings.
86The following cd9660 specific options are available:
87.Pp
88.Bl -tag -width "nostrictjoliet" -compact
89.It Cm extatt
90Same as
91.Fl e .
92.It Cm gens
93Same as
94.Fl g .
95.It Cm nojoliet
96Same as
97.Fl j .
98.It Cm norrip
99Same as
100.Fl r .
101.It Cm nostrictjoliet
102Same as
103.Fl b .
104.El
105.It Fl r
106Do not use any Rockridge extensions included in the file system.
107.It Fl s Ar startsector
108Start the file system at
109.Ar startsector .
110Normally, if the underlying device is a CD-ROM drive,
111.Nm
112will try to figure out the last track from the CD-ROM containing
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113data, and start the file system there.
114If the device is not a CD-ROM,
984263bc 115or the table of contents cannot be examined, the file system will be
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116started at sector 0.
117This option can be used to override the behaviour.
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118Note that
119.Ar startsector
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120is measured in CD-ROM blocks, with 2048 bytes each.
121This is the same
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122as for example the
123.Cm info
124command of
125.Xr cdcontrol 1
126is printing.
127It is possible to mount an arbitrary session of a multi-session CD by specifying
128the correct
129.Ar startsector
130here.
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131.It Fl C Ar charset
132Specify local
133.Ar charset
134to convert Unicode file names when using Joliet extensions.
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135.It Fl v
136Be verbose about the starting sector decisions made.
137.El
138.Sh EXAMPLES
139The following command can be used to mount a Kodak Photo-CD:
140.Pp
141.Dl "mount_cd9660 -o rw -v -s 0 /dev/cd0c /cdrom"
142.Sh SEE ALSO
143.Xr cdcontrol 1 ,
144.Xr mount 2 ,
145.Xr unmount 2 ,
146.Xr fstab 5 ,
147.Xr mount 8
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148.Sh HISTORY
149The
150.Nm
151utility first appeared in
152.Bx 4.4 .
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153.Sh BUGS
154POSIX device node mapping is currently not supported.
155.Pp
156Version numbers are not stripped if Rockridge extensions are in use.
8e7bb349 157In this case, accessing files that do not have Rockridge names without
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158version numbers gets the one with the lowest version number and not
159the one with the highest.
160.Pp
161There is no ECMA support.