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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"> | |
4 | <!-- | |
5 | This file is part of systemd. | |
6 | ||
c91faef3 | 7 | Copyright 2011 Lennart Poettering |
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8 | |
9 | systemd is free software; you can redistribute it and/or modify it | |
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10 | under the terms of the GNU Lesser General Public License as published by |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
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12 | (at your option) any later version. |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 17 | Lesser General Public License for more details. |
151b190e | 18 | |
5430f7f2 | 19 | You should have received a copy of the GNU Lesser General Public License |
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20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
21 | --> | |
56ba3c78 | 22 | <refentry id="binfmt.d" conditional='ENABLE_BINFMT'> |
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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> | |
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45 | <refpurpose>Configure additional binary formats for |
46 | executables at boot</refpurpose> | |
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47 | </refnamediv> |
48 | ||
49 | <refsynopsisdiv> | |
50 | <para><filename>/etc/binfmt.d/*.conf</filename></para> | |
db1413d7 | 51 | <para><filename>/run/binfmt.d/*.conf</filename></para> |
fc1a2e06 | 52 | <para><filename>/usr/lib/binfmt.d/*.conf</filename></para> |
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53 | </refsynopsisdiv> |
54 | ||
55 | <refsect1> | |
56 | <title>Description</title> | |
57 | ||
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58 | <para>At boot, |
59 | <citerefentry><refentrytitle>systemd-binfmt.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> | |
60 | reads configuration files from the above directories | |
61 | to register in the kernel additional binary | |
62 | formats for executables.</para> | |
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63 | </refsect1> |
64 | ||
65 | <refsect1> | |
0e25e94e | 66 | <title>Configuration Format</title> |
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67 | |
68 | <para>Each file contains a list of binfmt_misc kernel | |
69 | binary format rules. Consult <ulink | |
70 | url="http://www.kernel.org/doc/Documentation/binfmt_misc.txt">binfmt_misc.txt</ulink> | |
71 | for more information on registration of additional | |
72 | binary formats and how to write rules.</para> | |
73 | ||
74 | <para>Empty lines and lines beginning with ; and # are | |
75 | ignored. Note that this means you may not use ; and # | |
76 | as delimiter in binary format rules.</para> | |
77 | ||
9393a877 | 78 | <para>Each configuration file shall be named in the |
e670b166 | 79 | style of <filename><replaceable>program</replaceable>.conf</filename>. |
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80 | Files in <filename>/etc/</filename> override files |
81 | with the same name in <filename>/usr/lib/</filename> | |
82 | and <filename>/run/</filename>. Files in | |
83 | <filename>/run/</filename> override files with the | |
84 | same name in <filename>/usr/lib/</filename>. Packages | |
85 | should install their configuration files in | |
86 | <filename>/usr/lib/</filename>, files in | |
87 | <filename>/etc/</filename> are reserved for the local | |
88 | administrator, who may use this logic to override the | |
89 | configuration files installed from vendor | |
90 | packages. All files are sorted by their filename in | |
91 | alphabetical order, regardless in which of the | |
92 | directories they reside, to guarantee that a specific | |
93 | configuration file takes precedence over another file | |
94 | with an alphabetically later name.</para> | |
95 | ||
96 | <para>If the administrator wants to disable a | |
e9dd9f95 | 97 | configuration file supplied by the vendor, the |
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98 | recommended way is to place a symlink to |
99 | <filename>/dev/null</filename> in | |
100 | <filename>/etc/binfmt.d/</filename> bearing the | |
e9dd9f95 | 101 | same filename.</para> |
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102 | </refsect1> |
103 | ||
104 | <refsect1> | |
105 | <title>Example</title> | |
106 | <example> | |
107 | <title>/etc/binfmt.d/wine.conf example:</title> | |
108 | ||
109 | <programlisting># Start WINE on Windows executables | |
110 | :DOSWin:M::MZ::/usr/bin/wine:</programlisting> | |
111 | </example> | |
112 | </refsect1> | |
113 | ||
114 | <refsect1> | |
115 | <title>See Also</title> | |
116 | <para> | |
117 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
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118 | <citerefentry><refentrytitle>systemd-binfmt.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, |
119 | <citerefentry><refentrytitle>systemd-delta</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
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120 | <citerefentry><refentrytitle>wine</refentrytitle><manvolnum>8</manvolnum></citerefentry> |
121 | </para> | |
122 | </refsect1> | |
123 | ||
124 | </refentry> |