NEWFS_UDF(8)

NEWFS_UDF(8) | System Manager's Manual | NEWFS_UDF(8)

# NAME

`newfs_udf` —
construct a new UDF file system

# SYNOPSIS

`newfs_udf` | [`-cFM`] [`-B` blockingsize] [`-L` loglabel] [`-P` discid] [`-p` percentage] [`-S` sectorsize] [`-s` size] [`-t` gmtoff] [`-V` max_udf] [`-v` min_udf] special

# DESCRIPTION

The `newfs_udf` utility creates an UDF file system on device special suitable for the media currently inserted.

The options are as follow:

`-B` blockingsize
  When creating image files, specify the blocking size or packetsize of the media to blockingsize.
`-c`
  Perform a crude surface check first to weed out disc faults on rewritable media.
`-F`
  Force file system construction on non-empty recordable media or create an image file.
`-L` loglabel
  Set the disc logical label to the specified loglabel.
`-M`
  Disable metadata partition creation when selected UDF version or media dictates this. For strict conformance and interchange, don't disable this unless its causing problems.
`-P` discid
  Set the physical disc label to the specified discid.

  Prepend discid with volsetname separated with a ':' if wanted. For strict conformance and interchange, don't set this manually unless it has a unique hex number in the first 8 character positions.

`-p` percentage
  Percentage of partition to be initially reserved for metadata on the Metadata partition. It defaults to 20 %.
`-S` sectorsize
  Set the sectorsize for image files. For strict conformance and interchange, don't set this manually.
`-s` size
  For image files, set the file size to the humanized size size.
`-t` gmtoff
  Use the specified gmtoff as gmt time offset for recording times on the disc.
`-V` max_udf
  Select max_udf as the maximum UDF version to be supported. For UDF version 2.50, use “0x250” or “2.50”.
`-v` min_udf
  Select min_udf as the minimum UDF version to be supported. For UDF version 2.01, use “0x201” or “2.01”.

# NOTES

The UDF file system is defined for the entire optical medium. It can only function on the entire CD/DVD/BD so the raw partition has to be specified for read/write actions. For `newfs_udf` this means specifying the raw device with the raw partition, i.e. /dev/rcd0d or /dev/rcd0c.

Some rewritable optical media needs to be formatted first before it can be used by UDF. This can be done using mmcformat(8).

The default UDF version is version 2.01.

# EXAMPLES

Create a file system, using the specified names on the device /dev/rcd0d with the default UDF version :

    newfs_udf -P "Encyclopedia:copy-nr-1" -L "volume 2" /dev/rcd0d

Create a 4.8 GiB sparse file and configure it using vnconfig(8) to be a 2048 sector size disc and create a new UDF file system on /dev/rvnd0d :

    dd if=/dev/zero of=bigdisk.2048.udf seek=9999999 count=1
    vnconfig -c vnd0 bigdisk.2048.udf 2048/1/1/1
    newfs_udf -L bigdisk /dev/rvnd0d

Create a 2 GiB file and create a new UDF file system on it using the default 512 byte sector size :

    newfs_udf -L bigdisk2 -F -s 2G bigdisk2.iso

Create a 200 MiB file and create a new UDF file system on it using a sector size of 2048 :

    newfs_udf -L bigdisk2 -F -s 200M -S 2048 bigdisk3.iso

Create a new UDF file system on the inserted USB stick using its native sectorsize of 512 :

    newfs_udf -L "My USB stick" /dev/rsd0d

# SEE ALSO

disktab(5), disklabel(8), mmcformat(8), newfs(8)

# HISTORY

The `newfs_udf` command first appeared in NetBSD 5.0.

# AUTHORS

Reinoud Zandijk <reinoud@NetBSD.org>

# BUGS

The P and the S arguments have changed meaning. The meaning of S has been merged into P since NetBSD 6.1.

August 2, 2013 | NetBSD 10.0