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<a name="nm-initrd-generator"></a><div class="titlepage"></div>
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<td valign="top">
<h2><span class="refentrytitle">nm-initrd-generator</span></h2>
<p>nm-initrd-generator — early boot NetworkManager configuration generator</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="synopsis"></a><h2>Synopsis</h2>
<div class="cmdsynopsis"><p><code class="command">nm-initrd-generator</code> [<em class="replaceable"><code>OPTIONS</code></em>...] -- [<em class="replaceable"><code>CMDLINE</code></em>...]</p></div>
</div>
<div class="refsect1">
<a name="description"></a><h2>Description</h2>
<p><span class="command"><strong>nm-initrd-generator</strong></span> scans the command line for options
relevant to network configuration and creates configuration files for an early
instance of NetworkManager run from the initial ramdisk during early boot.</p>
</div>
<div class="refsect1">
<a name="options"></a><h2>Options</h2>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">
<code class="option">-c</code> | <code class="option">--connections-dir</code>
<em class="replaceable"><code>path</code></em>
</span></p></td>
<td><p>Output connection directory.</p></td>
</tr>
<tr>
<td><p><span class="term">
<code class="option">-p</code> | <code class="option">--persistent-connections-dir</code>
<em class="replaceable"><code>path</code></em>
</span></p></td>
<td><p>Persistent connection directory. If it exists, rd.neednet will not
cause a default connection to be generated in absence of other options.</p></td>
</tr>
<tr>
<td><p><span class="term">
<code class="option">-i</code> | <code class="option">--initrd-data-dir</code>
<em class="replaceable"><code>path</code></em>
</span></p></td>
<td><p>Output directory for initrd data (e.g. hostname).</p></td>
</tr>
<tr>
<td><p><span class="term">
<code class="option">-d</code> | <code class="option">--sysfs-dir</code>
<em class="replaceable"><code>path</code></em>
</span></p></td>
<td><p>The sysfs mount point.</p></td>
</tr>
<tr>
<td><p><span class="term">
<code class="option">-r</code> | <code class="option">--run-config-dir</code>
<em class="replaceable"><code>path</code></em>
</span></p></td>
<td><p>Output directory for config files.</p></td>
</tr>
<tr>
<td><p><span class="term">
<code class="option">-s</code> | <code class="option">--stdout</code>
</span></p></td>
<td><p>Dump connections to standard output. Useful for debugging.</p></td>
</tr>
<tr>
<td><p><span class="term"><em class="replaceable"><code>CMDLINE</code></em></span></p></td>
<td>
<p>The options that appear on the kernel command line. The following options are recognized:</p>
<table border="0" summary="Simple list" class="simplelist">
<tr><td><code class="option">ip</code></td></tr>
<tr><td><code class="option">rd.route</code></td></tr>
<tr><td><code class="option">bridge</code></td></tr>
<tr><td><code class="option">bond</code></td></tr>
<tr><td><code class="option">team</code></td></tr>
<tr><td><code class="option">vlan</code></td></tr>
<tr><td><code class="option">ib.pkey</code></td></tr>
<tr><td><code class="option">bootdev</code></td></tr>
<tr><td><code class="option">nameserver</code></td></tr>
<tr><td><code class="option">net.ifnames</code></td></tr>
<tr><td><code class="option">rd.peerdns</code></td></tr>
<tr><td><code class="option">rd.iscsi.ibft</code></td></tr>
<tr><td><code class="option">rd.bootif</code></td></tr>
<tr><td><code class="option">rd.neednet</code></td></tr>
<tr><td><code class="option">rd.ethtool</code></td></tr>
<tr><td><code class="option">rd.net.timeout.dhcp</code></td></tr>
<tr><td><code class="option">rd.net.dhcp.retry</code></td></tr>
<tr><td><code class="option">rd.net.dhcp.vendor-class</code></td></tr>
<tr><td><code class="option">rd.net.timeout.carrier</code></td></tr>
<tr><td><code class="option">rd.znet</code></td></tr>
<tr><td><code class="option">rd.znet_ifname</code></td></tr>
<tr><td><code class="option">BOOTIF</code></td></tr>
</table>
<p>Please consult the <span class="citerefentry"><span class="refentrytitle">dracut.cmdline</span>(7)</span>
manual for the documentation of the precise format of the values supported.</p>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="differences_from_network_legacy"></a><h2>Differences from the network-legacy dracut module</h2>
<p><span class="command"><strong>nm-initrd-generator</strong></span> generates a set of
connections that are then configured by the NetworkManager
instance running in the initrd. There are some differences in
behavior compared to the network-legacy dracut module:</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>When an interface is configured with a static address
and a gateway, the network-legacy module waits that the
gateway responds to arping requests before proceeding, while
NetworkManager doesn't.</p></li>
<li class="listitem"><p>network-legacy configures interfaces one by one in the
order in which they are announced by udev. If multiple
interfaces specify a hostname (from command line or from
DHCP), the one from the last interface activated wins. With
NetworkManager, hostnames from command line have higher
precedence over ones from DHCP, and the last that appears in
the command line wins.</p></li>
<li class="listitem"><p>NetworkManager supports the
<code class="option">ib.pkey</code>=<em class="replaceable"><code>PARENT</code></em>.<em class="replaceable"><code>PKEY</code></em>
argument to set up an Infiniband partition on IPoIB parent
device <em class="replaceable"><code>PARENT</code></em> using the specified
partition key <em class="replaceable"><code>PKEY</code></em>. The partition
key must be in hexadecimal notation without leading "0x", for
example "ib.pkey=ib0.8004".
</p></li>
<li class="listitem"><p>NetworkManager supports the
<code class="option">rd.ethtool</code>=<em class="replaceable"><code>INTERFACE</code></em>:<em class="replaceable"><code>AUTONEG</code></em>:<em class="replaceable"><code>SPEED</code></em>
kernel command line option to set up ethtool NIC configuration parameters
<em class="replaceable"><code>AUTONEG</code></em> and <em class="replaceable"><code>SPEED</code></em>.
The <em class="replaceable"><code>INTERFACE</code></em> being configured must be
specified, and the other parameters are optional and can be left blank.
When <em class="replaceable"><code>SPEED</code></em> is set, duplex mode is
automatically set to 'full'. <em class="replaceable"><code>INTERFACE</code></em>
accepts string values, <em class="replaceable"><code>AUTONEG</code></em> accepts
boolean values (true and false / on or off / 0 or 1), and
<em class="replaceable"><code>SPEED</code></em> accepts positive integer values.
</p></li>
</ul></div>
</div>
<div class="refsect1">
<a name="exit_status"></a><h2>Exit Status</h2>
<p><span class="command"><strong>nm-initrd-generator</strong></span> exits with status 0. It ignores unrecognized
options and prints an error message if it encounters a malformed option.</p>
</div>
<div class="refsect1">
<a name="see_also"></a><h2>See Also</h2>
<p><span class="citerefentry"><span class="refentrytitle">dracut.cmdline</span>(7)</span>,
<a class="link" href="NetworkManager.html" title="NetworkManager"><span class="citerefentry"><span class="refentrytitle">NetworkManager</span>(8)</span></a>.</p>
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