man/binfmt.d.xml

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   5   This file is part of systemd.
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   7   Copyright 2011 Lennart Poettering
   8
   9   systemd is free software; you can redistribute it and/or modify it
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  22 <refentry id="binfmt.d">
  23
  24         <refentryinfo>
  25                 <title>binfmt.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>binfmt.d</refentrytitle>
  40                 <manvolnum>5</manvolnum>
  41         </refmeta>
  42
  43         <refnamediv>
  44                 <refname>binfmt.d</refname>
  45                 <refpurpose>Configure additional binary formats at boot</refpurpose>
  46         </refnamediv>
  47
  48         <refsynopsisdiv>
  49                 <para><filename>/etc/binfmt.d/*.conf</filename></para>
  50                 <para><filename>/run/binfmt.d/*.conf</filename></para>
  51                 <para><filename>/usr/lib/binfmt.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                 additional binary formats to register during boot in
  60                 the kernel.</para>
  61         </refsect1>
  62
  63         <refsect1>
  64                 <title>Configuration Format</title>
  65
  66                 <para>Each file contains a list of binfmt_misc kernel
  67                 binary format rules. Consult <ulink
  68                 url="http://www.kernel.org/doc/Documentation/binfmt_misc.txt">binfmt_misc.txt</ulink>
  69                 for more information on registration of additional
  70                 binary formats and how to write rules.</para>
  71
  72                 <para>Empty lines and lines beginning with ; and # are
  73                 ignored. Note that this means you may not use ; and #
  74                 as delimiter in binary format rules.</para>
  75
  76                 <para>Each configuration file is named in the style of
  77                 <filename>&lt;program&gt;.conf</filename>.
  78                 Files in <filename>/etc/</filename> overwrite
  79                 files with the same name in <filename>/usr/lib/</filename>.
  80                 Files in <filename>/run</filename> overwrite files with
  81                 the same name in <filename>/etc/</filename> and
  82                 <filename>/usr/lib/</filename>. Packages should install their
  83                 configuration files in <filename>/usr/lib/</filename>, files
  84                 in <filename>/etc/</filename> are reserved for the local
  85                 administration, which possibly decides to overwrite the
  86                 configurations installed from packages. All files are sorted
  87                 by filename in alphabetical order, regardless in which of the
  88                 directories they reside, to ensure that a specific
  89                 configuration file takes precedence over another file with
  90                 an alphabetically later name.</para>
  91         </refsect1>
  92
  93         <refsect1>
  94                 <title>Example</title>
  95                 <example>
  96                         <title>/etc/binfmt.d/wine.conf example:</title>
  97
  98                         <programlisting># Start WINE on Windows executables
  99 :DOSWin:M::MZ::/usr/bin/wine:</programlisting>
 100                 </example>
 101         </refsect1>
 102
 103         <refsect1>
 104                 <title>See Also</title>
 105                 <para>
 106                         <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 107                         <citerefentry><refentrytitle>wine</refentrytitle><manvolnum>8</manvolnum></citerefentry>
 108                 </para>
 109         </refsect1>
 110
 111 </refentry>