NAME

newfs_udf — construct a new UDF file system.

SYNOPSIS

DESCRIPTION

The newfs_udf command builds the UDF filesystem on the specified special device.

The options are as follows:

General options:

-N

Causes the file system parameters to be printed out without really creating the file system.

-w

Stop processing on warnings, default: no

--wipefs yes|no

Whether wipe existing file systems on the volume before formatting it. Default: wipe existing file systems when media-type is block device (blk), access-type is overwrite (ow), and the Keep Disc Open option (-o) is not specified; do not wipe existing file systems by default in all other cases.

--largesparse

Format the volume to use a non UDF-compliant format to efficiently support very large sparse files (up to 2^63 - 1, or 9,223,372,036,854,775,807 bytes). Sparse files on this volume that has holes larger than 1GB cannot be accessed by other UDF implementations.

Disc properties:

-b block-size

The block size of the file system, in bytes, default: the native block size of the device, or 2048 for an image file

-d

The file system manages defects by creating a sparable partition, default: no

-e

Use extended file entry instead of file entry, default: no

-E ecc-in-blks

ECC block size in number of blocks

-m media-type

The type of the media, can be blk (block device), var-packet (varible size packet writing), fix-packet (fixed size packet writing), or pow (pseudo overwrite), default: blk

-t access-type

The access type of the partition, can be wo (writeonce), ow (overwrite), or pow (pseudo overwrite), default: ow

-o

Keep the disc as open by only writing the first AVDP (e.g., background formating haven't finish, so the write of the last two AVDPs is not possible), default: close the disc for overwrite media, and keep it open for write once media

-p packet-size

The size of a packet in number of blocks, default: 1

-s size

Size of the file system in blocks, default: size of the device

UDF parameters:

General:

-r rev

UDF version number, can be 1.02, 1.50, 2.00, 2.01, 2.50, or 2.60, default: 2.01

-u

Creates unique id table (or unique id stream), default: no

--unalloc-spc blk-addr num-blks

Unallocated space recorded in unallocated space descriptor, default: no unallocated spc

-v vol-name

Volume identifier, max 127 ascii or 63 unicode chars, default: "Untitled UDF Volume"

--enc encoding-name

The character encoding of the volume name, can be "utf8" or "utf16", default: utf8

Virtual partitions (for CD-R, DVD-R SL/DL, DVD+R SL/DL, and HD DVD-R SL/DL):

-S start-block-address

The start block address of the last session. Newfs_udf will search for this value for optical media

Sparable partitions (for CD-RW, DVD-RW, and DVD+RW):

--spare-blks n

Total number of sparing blocks (2 sparing tables are always used), default: 128

-D defect-file-name

The name of the file containing all defect blocks. This file is a text file, contains the physical block address of the media that has defects. When one block of a packet is defective, the whole packet is marked as defective. The block numbers in the file is delimited by space. Multiple numbers can be on the same line.

Metadata partitions (for BD-R with POW, BD-RE and other overwritable media with UDF 2.50 or higher ):

--dup-meta-part-file

Duplicate the content of the metadata file in the metadata mirror file, default: no

--meta-part-alloc-unit n

The allocation unit size of the metadata partition in number of blocks, default: max(32, eccSizeInBlks, packetSize)

--meta-part-align-unit n

The alignment unit size of the metadata partition in number of blocks, default: max(eccSizeInBlks, packetSize)

--meta-part-init-size n

The initial size of the metadata partition in number of blocks, default: 32

--userid uid

or

-U uid

Use the specified uid (numeric value only) as the owner of the root directory.

--groupid gid

or

-G gid

Use the specified gid (numeric value only) as the group of the root directory.

SEE ALSO

newfs(8)

BUGS

Unallocated space is not supported yet.

HISTORY

The newfs_udf utility first appeared in Mac OS X Leopard (10.5.0).