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1 | <?xml version='1.0'?> <!--*-nxml-*--> |
2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | |
798d3a52 | 3 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> |
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4 | |
5 | <!-- | |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2012 Lennart Poettering | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
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11 | under the terms of the GNU Lesser General Public License as published by |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
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13 | (at your option) any later version. |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 18 | Lesser General Public License for more details. |
44f44a29 | 19 | |
5430f7f2 | 20 | You should have received a copy of the GNU Lesser General Public License |
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21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
22 | --> | |
23 | ||
dfdebb1b | 24 | <refentry id="systemd-machine-id-setup" |
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25 | xmlns:xi="http://www.w3.org/2001/XInclude"> |
26 | ||
27 | <refentryinfo> | |
28 | <title>systemd-machine-id-setup</title> | |
29 | <productname>systemd</productname> | |
30 | ||
31 | <authorgroup> | |
32 | <author> | |
33 | <contrib>Developer</contrib> | |
34 | <firstname>Lennart</firstname> | |
35 | <surname>Poettering</surname> | |
36 | <email>lennart@poettering.net</email> | |
37 | </author> | |
38 | </authorgroup> | |
39 | </refentryinfo> | |
40 | ||
41 | <refmeta> | |
42 | <refentrytitle>systemd-machine-id-setup</refentrytitle> | |
43 | <manvolnum>1</manvolnum> | |
44 | </refmeta> | |
45 | ||
46 | <refnamediv> | |
47 | <refname>systemd-machine-id-setup</refname> | |
48 | <refpurpose>Initialize the machine ID in /etc/machine-id</refpurpose> | |
49 | </refnamediv> | |
50 | ||
51 | <refsynopsisdiv> | |
52 | <cmdsynopsis> | |
53 | <command>systemd-machine-id-setup</command> | |
54 | </cmdsynopsis> | |
55 | </refsynopsisdiv> | |
56 | ||
57 | <refsect1> | |
58 | <title>Description</title> | |
59 | ||
60 | <para><command>systemd-machine-id-setup</command> may be used by | |
61 | system installer tools to initialize the machine ID stored in | |
62 | <filename>/etc/machine-id</filename> at install time with a | |
63 | randomly generated ID. See | |
64 | <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
65 | for more information about this file.</para> | |
66 | ||
67 | <para>This tool will execute no operation if | |
68 | <filename>/etc/machine-id</filename> is already | |
69 | initialized.</para> | |
70 | ||
71 | <para>If a valid D-Bus machine ID is already configured for the | |
72 | system, the D-Bus machine ID is copied and used to initialize the | |
73 | machine ID in <filename>/etc/machine-id</filename>.</para> | |
74 | ||
75 | <para>If run inside a KVM virtual machine and a UUID is passed via | |
76 | the <option>-uuid</option> option, this UUID is used to initialize | |
77 | the machine ID instead of a randomly generated one. The caller | |
78 | must ensure that the UUID passed is sufficiently unique and is | |
79 | different for every booted instanced of the VM.</para> | |
80 | ||
81 | <para>Similar, if run inside a Linux container environment and a | |
82 | UUID is set for the container this is used to initialize the | |
83 | machine ID. For details see the documentation of the <ulink | |
84 | url="http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface">Container | |
85 | Interface</ulink>.</para> | |
86 | ||
87 | <para>Use | |
88 | <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
89 | to initialize the machine ID on mounted (but not booted) system | |
90 | images.</para> | |
91 | ||
92 | </refsect1> | |
93 | ||
94 | <refsect1> | |
95 | <title>Options</title> | |
96 | ||
97 | <para>The following options are understood:</para> | |
98 | ||
99 | <variablelist> | |
100 | <varlistentry> | |
101 | <term><option>--root=<replaceable>root</replaceable></option></term> | |
102 | <listitem><para>Takes a directory path as an argument. All | |
103 | paths will be prefixed with the given alternate | |
104 | <replaceable>root</replaceable> path, including config search | |
105 | paths. </para></listitem> | |
106 | </varlistentry> | |
107 | <xi:include href="standard-options.xml" xpointer="help" /> | |
108 | <xi:include href="standard-options.xml" xpointer="version" /> | |
109 | </variablelist> | |
110 | ||
111 | </refsect1> | |
112 | ||
113 | <refsect1> | |
114 | <title>Exit status</title> | |
115 | ||
116 | <para>On success, 0 is returned, a non-zero failure code | |
117 | otherwise.</para> | |
118 | </refsect1> | |
119 | ||
120 | <refsect1> | |
121 | <title>See Also</title> | |
122 | <para> | |
123 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
124 | <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
125 | <citerefentry><refentrytitle>dbus-uuidgen</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
126 | <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
127 | </para> | |
128 | </refsect1> | |
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129 | |
130 | </refentry> |