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<section id="ntfs3">
<h1>NTFS3<a class="headerlink" href="#ntfs3" title="Link to this heading">¶</a></h1>
<section id="summary-and-features">
<h2>Summary and Features<a class="headerlink" href="#summary-and-features" title="Link to this heading">¶</a></h2>
<p>NTFS3 is fully functional NTFS Read-Write driver. The driver works with NTFS
versions up to 3.1. File system type to use on mount is <em>ntfs3</em>.</p>
<ul>
<li><p>This driver implements NTFS read/write support for normal, sparse and
compressed files.</p></li>
<li><p>Supports native journal replaying.</p></li>
<li><p>Supports NFS export of mounted NTFS volumes.</p></li>
<li><p>Supports extended attributes. Predefined extended attributes:</p>
<blockquote>
<div><ul>
<li><p><em>system.ntfs_security</em> gets/sets security</p>
<blockquote>
<div><p>Descriptor: SECURITY_DESCRIPTOR_RELATIVE</p>
</div></blockquote>
</li>
<li><p><em>system.ntfs_attrib</em> gets/sets ntfs file/dir attributes.</p>
<p>Note: Applied to empty files, this allows to switch type between
sparse(0x200), compressed(0x800) and normal.</p>
</li>
<li><p><em>system.ntfs_attrib_be</em> gets/sets ntfs file/dir attributes.</p>
<p>Same value as system.ntfs_attrib but always represent as big-endian
(endianness of system.ntfs_attrib is the same as of the CPU).</p>
</li>
</ul>
</div></blockquote>
</li>
</ul>
</section>
<section id="mount-options">
<h2>Mount Options<a class="headerlink" href="#mount-options" title="Link to this heading">¶</a></h2>
<p>The list below describes mount options supported by NTFS3 driver in addition to
generic ones. You can use every mount option with <strong>no</strong> option. If it is in
this table marked with no it means default is without <strong>no</strong>.</p>
<table class="docutils align-default">
<tbody>
<tr class="row-odd"><td><p>iocharset=name</p></td>
<td><p>This option informs the driver how to interpret path strings and
translate them to Unicode and back. If this option is not set, the
default codepage will be used (CONFIG_NLS_DEFAULT).</p>
<p>Example: iocharset=utf8</p>
</td>
</tr>
<tr class="row-even"><td><p>uid=</p></td>
<td rowspan="2"><p></p></td>
</tr>
<tr class="row-odd"><td><p>gid=</p></td>
</tr>
<tr class="row-even"><td><p>umask=</p></td>
<td><p>Controls the default permissions for files/directories created after
the NTFS volume is mounted.</p></td>
</tr>
<tr class="row-odd"><td><p>dmask=</p></td>
<td rowspan="2"><p> Instead of specifying umask which applies both to files and
directories, fmask applies only to files and dmask only to directories.</p></td>
</tr>
<tr class="row-even"><td><p>fmask=</p></td>
</tr>
<tr class="row-odd"><td><p>nohidden</p></td>
<td><p>Files with the Windows-specific HIDDEN (FILE_ATTRIBUTE_HIDDEN) attribute
will not be shown under Linux.</p></td>
</tr>
<tr class="row-even"><td><p>sys_immutable</p></td>
<td><p>Files with the Windows-specific SYSTEM (FILE_ATTRIBUTE_SYSTEM) attribute
will be marked as system immutable files.</p></td>
</tr>
<tr class="row-odd"><td><p>hide_dot_files</p></td>
<td><p>Updates the Windows-specific HIDDEN (FILE_ATTRIBUTE_HIDDEN) attribute
when creating and moving or renaming files. Files whose names start
with a dot will have the HIDDEN attribute set and files whose names
do not start with a dot will have it unset.</p></td>
</tr>
<tr class="row-even"><td><p>windows_names</p></td>
<td><p>Prevents the creation of files and directories with a name not allowed
by Windows, either because it contains some not allowed character (which
are the characters “ * / : < > ? \ | and those whose code is less than
0x20), because the name (with or without extension) is a reserved file
name (CON, AUX, NUL, PRN, LPT1-9, COM1-9) or because the last character
is a space or a dot. Existing such files can still be read and renamed.</p></td>
</tr>
<tr class="row-odd"><td><p>discard</p></td>
<td><p>Enable support of the TRIM command for improved performance on delete
operations, which is recommended for use with the solid-state drives
(SSD).</p></td>
</tr>
<tr class="row-even"><td><p>force</p></td>
<td><p>Forces the driver to mount partitions even if volume is marked dirty.
Not recommended for use.</p></td>
</tr>
<tr class="row-odd"><td><p>sparse</p></td>
<td><p>Create new files as sparse.</p></td>
</tr>
<tr class="row-even"><td><p>showmeta</p></td>
<td><p>Use this parameter to show all meta-files (System Files) on a mounted
NTFS partition. By default, all meta-files are hidden.</p></td>
</tr>
<tr class="row-odd"><td><p>prealloc</p></td>
<td><p>Preallocate space for files excessively when file size is increasing on
writes. Decreases fragmentation in case of parallel write operations to
different files.</p></td>
</tr>
<tr class="row-even"><td><p>acl</p></td>
<td><p>Support POSIX ACLs (Access Control Lists). Effective if supported by
Kernel. Not to be confused with NTFS ACLs. The option specified as acl
enables support for POSIX ACLs.</p></td>
</tr>
</tbody>
</table>
</section>
<section id="todo-list">
<h2>Todo list<a class="headerlink" href="#todo-list" title="Link to this heading">¶</a></h2>
<ul class="simple">
<li><p>Full journaling support over JBD. Currently journal replaying is supported
which is not necessarily as effective as JBD would be.</p></li>
</ul>
</section>
<section id="references">
<h2>References<a class="headerlink" href="#references" title="Link to this heading">¶</a></h2>
<ul class="simple">
<li><dl class="simple">
<dt>Commercial version of the NTFS driver for Linux.</dt><dd><p><a class="reference external" href="https://www.paragon-software.com/home/ntfs-linux-professional/">https://www.paragon-software.com/home/ntfs-linux-professional/</a></p>
</dd>
</dl>
</li>
<li><dl class="simple">
<dt>Direct e-mail address for feedback and requests on the NTFS3 implementation.</dt><dd><p><a class="reference external" href="mailto:almaz.alexandrovich%40paragon-software.com">almaz<span>.</span>alexandrovich<span>@</span>paragon-software<span>.</span>com</a></p>
</dd>
</dl>
</li>
</ul>
</section>
</section>
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