NetBSD/sbin/mount_udf/mount_udf.8

.\" $NetBSD: mount_udf.8,v 1.6 2006/02/06 11:45:50 reinoud Exp $
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.\" Copyright (c) 2005 Reinoud Zandijk
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.\" <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
.\"
.Dd January 26, 2006
.Dt MOUNT_UDF 8
.Os
.Sh NAME
.Nm mount_udf
.Nd mount an UDF file system
.Sh SYNOPSIS
.Nm
.\".Op Fl c
.Op Fl g Ar gid
.Op Fl o Ar options
.Op Fl t Ar gmtoff
.Op Fl u Ar uid
.Ar special
.Ar node
.Sh DESCRIPTION
The
.Nm
command attaches the UDF file system residing on the specified
.Ar special
device node on the location indicated with
.Ar node .
.Pp
Anonymous files stored on the UDF disc will be represented and saved in the
specified uid:gid pair.
If unspecified, it will default to nobody:nobody.
Both uid and gid can be either specified with their names as with
their numerical equivalents.
.Bl -tag -width XXXoptions
.\" .It Fl c
.\" Close the CD/DVD session after unmount (writing).
.It Fl g Ar gid
Set the group of anonymous files on the file system.
The default group is the nobody group.
.It Fl o Ar options
Use the specified mount
.Ar options
as specified in
.Xr mount 8 .
.It Fl s Ar session
Select the session
.Ar session
to be mounted instead of the default last one.
Positive
.Ar session
values indicate an absolute session number.
Negative
.Ar session
values are relative to the last session found on the disc.
Note that this option only makes sense when mounting sequential
recordable media like CD-R and DVD*R.
.It Fl t Ar gmtoff
Set the time zone offset (in seconds) from UTC to
.Ar gmtoff ,
with positive values indicating east of the Prime Meridian.
If not set, the user's current time zone will be used.
.It Fl u Ar uid
Set the owner of anonymous files on the file system.
The default owner is the user nobody.
.El
.Sh SEE ALSO
.Xr mount 2 ,
.Xr vnd 4 ,
.Xr fstab 5 ,
.Xr mount 8 ,
.Xr umount 8 ,
.Xr vnconfig 8
.Sh NOTES
UDF is a file system defined by the OSTA standardization group and
is tailored for data interchange on optical discs (like CDs and
DVDs) between different operating systems.
Its also more and more common on other media like Compact
Flash (CF) cards.
.Pp
Currently only read access is supported for all media types that
CD/DVD type drives can recognise including DVD-RAM and BluRay
drives.
Write access is planned and in preparation.
.Pp
Implemented and tested media types are CD-ROM, CD-R, CD-RW, CD-MRW,
DVD-ROM, DVD*R, DVD*RW, DVD+MRW but the same code can also read
DVD-RAM, HD-DVD and BluRay discs.
Discs created and written by UDFclient, Nero's InCD, and Roxio's
DirectCD/Drag2Disc can be read without problems.
Both open and closed media are supported so
there is no need to close discs or sessions.
.Pp
All current UDF versions up to version 2.60 are supported.
.Pp
Hard disk partitions and
.Xr vnd 4
devices may also be mounted.
Note when mounting a
.Xr vnd 4
device it might be necessary to specify the file image sector size
in the
.Pa geomspec
when creating the
.Xr vnd 4
device or the disc sector size will be used.
.Sh BUGS
Due to lack of test media, versions 2.50 and 2.60 are prepared but
not implemented and tested yet.