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.\" Copyright (c) 2002\-2004 Anton Altaparmakov.
.\" Copyright (c) 2005 Richard Russon.
.\" Copyright (c) 2012 Jean-Pierre Andre.
.\" This file may be copied under the terms of the GNU Public License.
.\"
.TH NTFSLABEL 8 "January 2012" "ntfs-3g @VERSION@"
.SH NAME
ntfslabel \- display/change the label on an ntfs file system
.SH SYNOPSIS
.B ntfslabel
[\fIoptions\fR] \fIdevice \fR[\fInew\-label\fR]
.SH DESCRIPTION
.B ntfslabel
will display or change the file system label on the ntfs file system located on
.IR device .
It can also change the serial number of the
.IR device .
.PP
If the optional argument
.I new\-label
is not present, and no option is present,
.B ntfslabel
will simply display the current file system label.
.PP
If the optional argument
.I new\-label
is present, then
.B ntfslabel
will set the file system label to be
.IR new\-label .
NTFS file system labels can be at most 128 Unicode characters long; if
.I new\-label
is longer than 128 Unicode characters,
.B ntfslabel
will truncate it and print a warning message.
.PP
It is also possible to set the file system label using the
.B \-L
option of
.BR mkntfs (8)
during creation of the file system.
.SH OPTIONS
Below is a summary of all the options that
.B ntfslabel
accepts. Nearly all options have two equivalent names. The short name is
preceded by
.B \-
and the long name is preceded by
.BR \-\- .
Any single letter options, that don't take an argument, can be combined into a
single command, e.g.
.B \-fv
is equivalent to
.BR "\-f \-v" .
Long named options can be abbreviated to any unique prefix of their name.
.TP
\fB\-f\fR, \fB\-\-force\fR
This will override some sensible defaults, such as not working with a mounted
volume. Use this option with caution.
.TP
\fB\-h\fR, \fB\-\-help\fR
Show a list of options with a brief description of each one.
.TP
\fB\-\-new\-serial\fR[\fI=ssssssssssssssss\fR], or
.TP
\fB\-\-new\-half\-serial\fR[\fI=ssssssss\fR]
Set a new serial number to the device, either the argument value, or a random
one if no argument is given. The serial number is a 64 bit number,
represented as a sixteen-digit hexadecimal number, used to identify the
device during the mounting process. As a consequence, two devices with the
same serial number cannot be mounted at the same time on the same computer.
This is not the volume UUID used by Windows to locate files which have been
moved to another volume.
The option \-\-new\-half\-serial only changes the upper part of the serial
number, keeping the lower part which is used by Windows unchanged.
In this case the optional argument is an eight-digit hexadecimal number.
.TP
\fB\-n\fR, \fB\-\-no\-action\fR
Don't actually write to disk.
.TP
\fB\-q\fR, \fB\-\-quiet\fR
Reduce the amount of output to a minimum.
.TP
\fB\-v\fR, \fB\-\-verbose\fR
Increase the amount of output that
.B ntfslabel
prints. The label and the serial number are displayed.
.TP
\fB\-V\fR, \fB\-\-version\fR
Show the version number, copyright and license for
.BR ntfslabel .
.SH BUGS
There are no known problems with
.BR ntfslabel .
If you find a bug please send an email describing the problem to the
development team:
.br
.nh
ntfs\-3g\-devel@lists.sf.net
.hy
.SH AUTHORS
.B ntfslabel
was written by Matthew J. Fanto, with contributions from Anton Altaparmakov and
Richard Russon.
It was ported to ntfs-3g by Erik Larsson.
.SH AVAILABILITY
.B ntfslabel
is part of the
.B ntfs-3g
package and is available from:
.br
.nh
https://github.com/tuxera/ntfs-3g/wiki/
.hy
.SH SEE ALSO
.BR mkntfs (8),
.BR ntfsprogs (8)