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1 | <?xml version='1.0'?> <!--*-nxml-*--> |
2 | <?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?> | |
3 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | |
4 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> | |
5 | ||
6 | <!-- | |
7 | This file is part of systemd. | |
8 | ||
9 | Copyright 2010 Lennart Poettering | |
10 | ||
11 | systemd is free software; you can redistribute it and/or modify it | |
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12 | under the terms of the GNU Lesser General Public License as published by |
13 | the Free Software Foundation; either version 2.1 of the License, or | |
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14 | (at your option) any later version. |
15 | ||
16 | systemd is distributed in the hope that it will be useful, but | |
17 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 19 | Lesser General Public License for more details. |
da49e9ab | 20 | |
5430f7f2 | 21 | You should have received a copy of the GNU Lesser General Public License |
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22 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
23 | --> | |
24 | ||
25 | <refentry id="systemd.target"> | |
26 | <refentryinfo> | |
27 | <title>systemd.target</title> | |
28 | <productname>systemd</productname> | |
29 | ||
30 | <authorgroup> | |
31 | <author> | |
32 | <contrib>Developer</contrib> | |
33 | <firstname>Lennart</firstname> | |
34 | <surname>Poettering</surname> | |
35 | <email>lennart@poettering.net</email> | |
36 | </author> | |
37 | </authorgroup> | |
38 | </refentryinfo> | |
39 | ||
40 | <refmeta> | |
41 | <refentrytitle>systemd.target</refentrytitle> | |
42 | <manvolnum>5</manvolnum> | |
43 | </refmeta> | |
44 | ||
45 | <refnamediv> | |
46 | <refname>systemd.target</refname> | |
34511ca7 | 47 | <refpurpose>Target unit configuration</refpurpose> |
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48 | </refnamediv> |
49 | ||
50 | <refsynopsisdiv> | |
e670b166 | 51 | <para><filename><replaceable>target</replaceable>.target</filename></para> |
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52 | </refsynopsisdiv> |
53 | ||
54 | <refsect1> | |
55 | <title>Description</title> | |
56 | ||
57 | <para>A unit configuration file whose name ends in | |
479fe882 | 58 | <literal>.target</literal> encodes information about |
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59 | a target unit of systemd, which is used for grouping |
60 | units and as well-known synchronization points during | |
61 | start-up.</para> | |
62 | ||
63 | <para>This unit type has no specific options. See | |
64 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
65 | for the common options of all unit configuration | |
66 | files. The common configuration items are configured | |
67 | in the generic [Unit] and [Install] sections. A | |
b439c6ee | 68 | separate [Target] section does not exist, since no |
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69 | target-specific options may be configured.</para> |
70 | ||
71 | <para>Target units do not offer any additional | |
72 | functionality on top of the generic functionality | |
73 | provided by units. They exist merely to group units via dependencies | |
74 | (useful as boot targets), and to establish | |
75 | standardized names for synchronization points used in | |
b439c6ee | 76 | dependencies between units. Among other things, target |
da49e9ab | 77 | units are a more flexible replacement for SysV |
b439c6ee | 78 | runlevels in the classic SysV init system. (And for |
62adf224 | 79 | compatibility reasons special |
da49e9ab | 80 | target units such as |
62adf224 | 81 | <filename>runlevel3.target</filename> exist which are used by |
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82 | the SysV runlevel compatibility code in systemd. See |
83 | <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry> | |
84 | for details).</para> | |
62adf224 | 85 | |
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86 | <para>Unless <varname>DefaultDependencies=</varname> |
87 | is set to <option>false</option>, target units will | |
88 | implicitly complement all configured dependencies of | |
89 | type <varname>Wants=</varname>, | |
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90 | <varname>Requires=</varname>, |
91 | <varname>RequiresOverridable=</varname> with | |
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92 | dependencies of type <varname>After=</varname> if the |
93 | units in question also have | |
94 | <varname>DefaultDependencies=true</varname>. | |
62adf224 | 95 | </para> |
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96 | </refsect1> |
97 | ||
98 | <refsect1> | |
99 | <title>See Also</title> | |
100 | <para> | |
f3e219a2 | 101 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, |
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102 | <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>, |
103 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
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104 | <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>, |
105 | <citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry> | |
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106 | </para> |
107 | </refsect1> | |
108 | ||
109 | </refentry> |