man/modules-load.d.xml

   1 <?xml version="1.0"?>
   2 <!--*-nxml-*-->
   3 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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   5   This file is part of systemd.
   6
   7   Copyright 2011 Lennart Poettering
   8
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  10   under the terms of the GNU General Public License as published by
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  20   along with systemd; If not, see <http://www.gnu.org/licenses/>.
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  22 <refentry id="modules-load.d">
  23
  24         <refentryinfo>
  25                 <title>modules-load.d</title>
  26                 <productname>systemd</productname>
  27
  28                 <authorgroup>
  29                         <author>
  30                                 <contrib>Developer</contrib>
  31                                 <firstname>Lennart</firstname>
  32                                 <surname>Poettering</surname>
  33                                 <email>lennart@poettering.net</email>
  34                         </author>
  35                 </authorgroup>
  36         </refentryinfo>
  37
  38         <refmeta>
  39                 <refentrytitle>modules-load.d</refentrytitle>
  40                 <manvolnum>5</manvolnum>
  41         </refmeta>
  42
  43         <refnamediv>
  44                 <refname>modules-load.d</refname>
  45                 <refpurpose>Configure kernel modules to load at boot</refpurpose>
  46         </refnamediv>
  47
  48         <refsynopsisdiv>
  49                 <para><filename>/usr/lib/modules-load.d/*.conf</filename></para>
  50                 <para><filename>/etc/modules-load.d/*.conf</filename></para>
  51                 <para><filename>/run/modules-load.d/*.conf</filename></para>
  52         </refsynopsisdiv>
  53
  54         <refsect1>
  55                 <title>Description</title>
  56
  57                 <para><command>systemd</command> uses
  58                 files from the above directories to configure
  59                 kernel modules to load during boot in a static list.
  60                 Each configuration file is named in the style of
  61                 <filename>/etc/modules-load.d/&lt;program&gt;.conf</filename>. Note
  62                 that it is usually a better idea to use the automatic
  63                 module loading by PCI ID, by DMI ID or similar
  64                 triggers configured in the kernel modules themselves
  65                 instead of relying on static configuration like
  66                 this.</para>
  67         </refsect1>
  68
  69         <refsect1>
  70                 <title>Configuration Format</title>
  71
  72                 <para>The configuration files should simply contain a
  73                 list of kernel module names to load, separated by
  74                 newlines. Empty lines and lines whose first
  75                 non-whitespace character is # or ; are ignored.</para>
  76
  77                 <para>Files in <filename>/etc/</filename> overwrite
  78                 files with the same name in <filename>/usr/lib/</filename>.
  79                 Files in <filename>/run</filename> overwrite files with
  80                 the same name in <filename>/etc/</filename> and
  81                 <filename>/usr/lib/</filename>. Packages should install their
  82                 configuration files in <filename>/usr/lib/</filename>, files
  83                 in <filename>/etc/</filename> are reserved for the local
  84                 administration, which possibly decides to overwrite the
  85                 configurations installed from packages. All files are sorted
  86                 by filename in alphabetical order, regardless in which of the
  87                 directories they reside, to ensure that a specific
  88                 configuration file takes precedence over another file with
  89                 an alphabetically later name.</para>
  90         </refsect1>
  91
  92         <refsect1>
  93                 <title>Example</title>
  94                 <example>
  95                         <title>/etc/modules-load.d/virtio-net.conf example:</title>
  96
  97                         <programlisting># Load virtio-net.ko at boot
  98 virtio-net</programlisting>
  99                 </example>
 100         </refsect1>
 101
 102         <refsect1>
 103                 <title>See Also</title>
 104                 <para>
 105                         <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 106                         <citerefentry><refentrytitle>modprobe</refentrytitle><manvolnum>8</manvolnum></citerefentry>
 107                 </para>
 108         </refsect1>
 109
 110 </refentry>