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  nm-initrd-generator(8) manual page

  Copyright 2018 Red Hat, Inc.

  Permission is granted to copy, distribute and/or modify this document

  under the terms of the GNU Free Documentation License, Version 1.1

  or any later version published by the Free Software Foundation;

  with no Invariant Sections, no Front-Cover Texts, and no Back-Cover

  Texts. You may obtain a copy of the GNU Free Documentation License

  from the Free Software Foundation by visiting their Web site or by

  writing to:

  Free Software Foundation, Inc.,

  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

-->

<refentry id='nm-initrd-generator'>

  <refentryinfo>

    <title>nm-initrd-generator</title>

    <author>NetworkManager developers</author>

  </refentryinfo>

  <refmeta>

    <refentrytitle>nm-initrd-generator</refentrytitle>

    <manvolnum>8</manvolnum>

    <refmiscinfo class="source">NetworkManager</refmiscinfo>

    <refmiscinfo class="manual">System Administration</refmiscinfo>

    <refmiscinfo class="version">&NM_VERSION;</refmiscinfo>

  </refmeta>

  <refnamediv>

    <refname>nm-initrd-generator</refname>

    <refpurpose>early boot NetworkManager configuration generator</refpurpose>

  </refnamediv>

  <refsynopsisdiv id='synopsis'>

    <cmdsynopsis>

      <command>nm-initrd-generator</command>

      <arg choice="opt" rep="repeat"><replaceable>OPTIONS</replaceable></arg>

      <arg choice="plain">--</arg>

      <arg choice="opt" rep="repeat"><replaceable>CMDLINE</replaceable></arg>

    </cmdsynopsis>

  </refsynopsisdiv>

  <refsect1 id='description'><title>Description</title>

    <para><command>nm-initrd-generator</command> 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.</para>

  </refsect1>

  <refsect1 id='options'><title>Options</title>

    <variablelist>

      <varlistentry>

        <term>

          <group choice='plain'>

            <arg choice='plain'><option>-c</option></arg>

            <arg choice='plain'><option>--connections-dir</option></arg>

          </group>

          <arg choice='plain'><replaceable>path</replaceable></arg>

        </term>

        <listitem>

          <para>Output connection directory.</para>

        </listitem>

      </varlistentry>

      <varlistentry>

        <term>

          <group choice='plain'>

            <arg choice='plain'><option>-i</option></arg>

            <arg choice='plain'><option>--initrd-data-dir</option></arg>

          </group>

          <arg choice='plain'><replaceable>path</replaceable></arg>

        </term>

        <listitem>

          <para>Output directory for initrd data (e.g. hostname).</para>

        </listitem>

      </varlistentry>

      <varlistentry>

        <term>

          <group choice='plain'>

            <arg choice='plain'><option>-d</option></arg>

            <arg choice='plain'><option>--sysfs-dir</option></arg>

          </group>

          <arg choice='plain'><replaceable>path</replaceable></arg>

        </term>

        <listitem>

          <para>The sysfs mount point.</para>

        </listitem>

      </varlistentry>

      <varlistentry>

        <term>

          <group choice='plain'>

            <arg choice='plain'><option>-s</option></arg>

            <arg choice='plain'><option>--stdout</option></arg>

          </group>

        </term>

        <listitem>

          <para>Dump connections to standard output. Useful for debugging.</para>

        </listitem>

      </varlistentry>

      <varlistentry>

        <term><replaceable>CMDLINE</replaceable></term>

        <listitem>

          <para>The options that appear on the kernel command line. The following options are recognized:</para>

          <simplelist>

            <member><option>ip</option></member>

            <member><option>rd.route</option></member>

            <member><option>bridge</option></member>

            <member><option>bond</option></member>

            <member><option>team</option></member>

            <member><option>vlan</option></member>

            <member><option>bootdev</option></member>

            <member><option>nameserver</option></member>

            <member><option>rd.peerdns</option></member>

            <member><option>rd.bootif</option></member>

            <member><option>rd.net.timeout.dhcp</option></member>

            <member><option>BOOTIF</option></member>

          </simplelist>

          <para>Please consult the <citerefentry><refentrytitle>dracut.cmdline</refentrytitle><manvolnum>7</manvolnum></citerefentry>

          manual for the documentation of the precise format of the values supported.</para>

        </listitem>

      </varlistentry>

    </variablelist>

  </refsect1>

  <refsect1 id='differences_from_network_legacy'><title>Differences from the network-legacy dracut module</title>

    <para><command>nm-initrd-generator</command> 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:</para>

    <itemizedlist>

      <listitem>

        <para>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.</para>

      </listitem>

      <listitem>

        <para>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.</para>

      </listitem>

    </itemizedlist>

  </refsect1>

  <refsect1 id='exit_status'><title>Exit Status</title>

    <para><command>nm-initrd-generator</command> exits with status 0. It ignores unrecognized

    options and prints an error message if it encounters a malformed option.</para>

  </refsect1>

  <refsect1 id='see_also'><title>See Also</title>

    <para><link linkend='dracut.cmdline'><citerefentry><refentrytitle>dracut.cmdline</refentrytitle><manvolnum>7</manvolnum></citerefentry></link>,

    <link linkend='NetworkManager'><citerefentry><refentrytitle>NetworkManager</refentrytitle><manvolnum>8</manvolnum></citerefentry></link>.</para>

  </refsect1>

</refentry>