mount_udf(8) - NetBSD Manual Pages

MOUNT_UDF(8)            NetBSD System Manager's Manual            MOUNT_UDF(8)


NAME

     mount_udf -- mount an UDF file system


SYNOPSIS

     mount_udf [-g gid] [-o options] [-t gmtoff] [-u uid] special node


DESCRIPTION

     The mount_udf command attaches the UDF file system residing on the speci-
     fied special device node on the location indicated with node.

     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.

     -g gid      Set the group of anonymous files on the file system.  The
                 default group is the nobody group.

     -o options  Use the specified mount options as specified in mount(8).

     -s session  Select the session session to be mounted instead of the
                 default last one.  Positive session values indicate an abso-
                 lute session number.  Negative 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.

     -t gmtoff   Set the time zone offset (in seconds) from UTC to gmtoff,
                 with positive values indicating east of the Prime Meridian.
                 If not set, the user's current time zone will be used.

     -u uid      Set the owner of anonymous files on the file system.  The
                 default owner is the user nobody.


SEE ALSO

     mount(2), vnd(4), fstab(5), mount(8), umount(8), vnconfig(8)


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.

     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.

     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.

     All current UDF versions up to version 2.60 are supported.

     Hard disk partitions and vnd(4) devices may also be mounted.  Note when
     mounting a vnd(4) device it might be necessary to specify the file image
     sector size in the geomspec when creating the vnd(4) device or the disc
     sector size will be used.


BUGS

     Due to lack of test media, versions 2.50 and 2.60 are prepared but not
     implemented and tested yet.

NetBSD 4.0                     January 26, 2006                     NetBSD 4.0