144 lines
5.0 KiB
Groff
144 lines
5.0 KiB
Groff
.\" $NetBSD: mount_udf.8,v 1.9 2008/08/08 22:48:24 wiz Exp $
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.\"
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.\" Copyright (c) 2006, 2008 Reinoud Zandijk
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed for the
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.\" NetBSD Project. See http://www.NetBSD.org/ for
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.\" information about NetBSD.
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.\" 4. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
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.\"
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.Dd August 8, 2008
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.Dt MOUNT_UDF 8
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.Os
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.Sh NAME
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.Nm mount_udf
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.Nd mount an UDF file system
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.Sh SYNOPSIS
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.Nm
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.\".Op Fl c
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.Op Fl g Ar gid
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.Op Fl o Ar options
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.Op Fl t Ar gmtoff
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.Op Fl s Ar session
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.Op Fl u Ar uid
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.Ar special
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.Ar node
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.Sh DESCRIPTION
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The
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.Nm
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command attaches the UDF file system residing on the specified
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.Ar special
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device node on the location indicated with
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.Ar node .
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.Pp
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Anonymous files stored on the UDF disc will be represented and saved in the
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specified uid:gid pair.
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If unspecified, it will default to nobody:nobody.
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Both uid and gid can be either specified with their names as with
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their numerical equivalents.
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.Bl -tag -width XXXoptions
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.\" .It Fl c
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.\" Close the CD/DVD session after unmount (writing).
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.It Fl g Ar gid
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Set the group of anonymous files on the file system.
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The default group is the nobody group.
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.It Fl o Ar options
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Use the specified mount
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.Ar options
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as specified in
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.Xr mount 8 .
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.It Fl s Ar session
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Select the session
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.Ar session
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to be mounted instead of the default last one.
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Positive
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.Ar session
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values indicate an absolute session number.
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Negative
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.Ar session
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values are relative to the last session found on the disc.
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Note that this option only makes sense when mounting sequential
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recordable media like CD-R and DVD*R.
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.It Fl t Ar gmtoff
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Set the time zone offset (in seconds) from UTC to
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.Ar gmtoff ,
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with positive values indicating east of the Prime Meridian.
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If not set, the user's current time zone will be used.
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.It Fl u Ar uid
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Set the owner of anonymous files on the file system.
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The default owner is the user nobody.
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.El
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.Sh SEE ALSO
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.Xr mount 2 ,
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.Xr vnd 4 ,
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.Xr fstab 5 ,
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.Xr mount 8 ,
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.Xr umount 8 ,
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.Xr vnconfig 8
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.Sh NOTES
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UDF is a file system defined by the OSTA standardization group and
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is tailored for data interchange on optical discs (like CDs and
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DVDs) between different operating systems.
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Its also more and more common on other media like Compact
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Flash (CF) cards.
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.Pp
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Read and write access is supported for all media types that CD/DVD type drives
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can recognise including DVD-RAM. BluRay support is preliminary; read-only
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access should work fine but write support is experimental.
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.Pp
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Implemented and tested media types are CD-ROM, CD-R, CD-RW, CD-MRW,
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DVD-ROM, DVD*R, DVD*RW, DVD+MRW, DVD-RAM but the same code can also read
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HD-DVD and BluRay discs.
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Discs created and written by UDFclient, Nero's InCD, and Roxio's
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DirectCD/Drag2Disc can be read without problems.
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Both open and closed media are supported so
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there is no need to close discs or sessions.
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.Pp
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All current UDF versions up to version 2.60 are supported.
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.Pp
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Hard disk partitions and
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.Xr vnd 4
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devices may also be mounted.
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Note when mounting a
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.Xr vnd 4
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device it might be necessary to specify the file image sector size
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in the
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.Pa geomspec
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when creating the
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.Xr vnd 4
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device or the disc sector size will be used.
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.Sh BUGS
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Write support for UDF version 2.50 is not completely mature and UDF version
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2.01 should be used if possible; this is also the default format.
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.Pp
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Disk space accounting is not upto par and care should be taken not to write
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too much on a disk.
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.Pp
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Due to lack of test media and recording devices, BluRay support and in
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particular BluRay-R is still preliminary as of writing.
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