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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 | ||
7 | Copyright 2014 Lennart Poettering | |
8 | ||
9 | systemd is free software; you can redistribute it and/or modify it | |
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 | |
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 | |
17 | Lesser General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU Lesser General Public License | |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
21 | --> | |
22 | <refentry id="systemd-update-done.service"> | |
23 | ||
24 | <refentryinfo> | |
25 | <title>systemd-update-done.service</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>systemd-update-done.service</refentrytitle> | |
40 | <manvolnum>8</manvolnum> | |
41 | </refmeta> | |
42 | ||
43 | <refnamediv> | |
44 | <refname>systemd-update-done.service</refname> | |
45 | <refname>systemd-update-done</refname> | |
46 | <refpurpose>Mark <filename>/etc</filename> and <filename>/var</filename> fully updated</refpurpose> | |
47 | </refnamediv> | |
48 | ||
49 | <refsynopsisdiv> | |
50 | <para><filename>systemd-update-done.service</filename></para> | |
51 | <para><filename>/usr/lib/systemd/systemd-update-done</filename></para> | |
52 | </refsynopsisdiv> | |
53 | ||
54 | <refsect1> | |
55 | <title>Description</title> | |
56 | ||
57 | <para><filename>systemd-update-done.service</filename> | |
58 | is a service that is invoked as part of the first boot | |
59 | after the vendor operating system resources in | |
60 | <filename>/usr</filename> have been updated. This is | |
61 | useful to implement offline updates of | |
62 | <filename>/usr</filename> which might requires updates | |
63 | to <filename>/etc</filename> or | |
64 | <filename>/var</filename> on the following boot.</para> | |
65 | ||
66 | <para><filename>systemd-update-done.service</filename> | |
67 | updates the file modification time (mtime) of the | |
68 | stamp files <filename>/etc/.updated</filename> and | |
69 | <filename>/var/.updated</filename> to the modification | |
70 | time of the <filename>/usr</filename> directory, | |
71 | unless the stamp files are already newer.</para> | |
72 | ||
73 | <para>Services that shall run after offline upgrades | |
74 | of <filename>/usr</filename> should order themselves | |
75 | before | |
76 | <filename>systemd-update-done.service</filename>, and | |
77 | use the <varname>ConditionNeedsUpdate=</varname> (see | |
78 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>) | |
79 | condition to make sure to run when | |
80 | <filename>/etc</filename> or <filename>/var</filename> | |
81 | are older than <filename>/usr</filename> according to | |
82 | the modification times of the files described | |
83 | above. This requires that updates to | |
84 | <filename>/usr</filename> are always followed by an | |
85 | update of the modification time of | |
86 | <filename>/usr</filename>, for example by invoking | |
87 | <citerefentry><refentrytitle>touch</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
88 | on it.</para> | |
89 | ||
90 | </refsect1> | |
91 | ||
92 | <refsect1> | |
93 | <title>See Also</title> | |
94 | <para> | |
95 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
96 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
97 | <citerefentry><refentrytitle>touch</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
98 | </para> | |
99 | </refsect1> | |
100 | ||
101 | </refentry> |