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[elogind.git] / man / systemd-cryptsetup@.service.xml
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 2012 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.
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15   WITHOUT ANY WARRANTY; without even the implied warranty of
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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-cryptsetup@.service" conditional='HAVE_LIBCRYPTSETUP'>
23
24   <refentryinfo>
25     <title>systemd-cryptsetup@.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-cryptsetup@.service</refentrytitle>
40     <manvolnum>8</manvolnum>
41   </refmeta>
42
43   <refnamediv>
44     <refname>systemd-cryptsetup@.service</refname>
45     <refname>systemd-cryptsetup</refname>
46     <refpurpose>Full disk decryption logic</refpurpose>
47   </refnamediv>
48
49   <refsynopsisdiv>
50     <para><filename>systemd-cryptsetup@.service</filename></para>
51     <para><filename>/usr/lib/systemd/systemd-cryptsetup</filename></para>
52   </refsynopsisdiv>
53
54   <refsect1>
55     <title>Description</title>
56
57     <para><filename>systemd-cryptsetup@.service</filename> is a
58     service responsible for setting up encrypted block devices. It is
59     instantiated for each device that requires decryption for
60     access.</para>
61
62     <para><filename>systemd-cryptsetup@.service</filename> will ask
63     for hard disk passwords via the <ulink
64     url="http://www.freedesktop.org/wiki/Software/systemd/PasswordAgents">
65     password agent logic</ulink>, in order to query the user for the
66     password using the right mechanism at boot and during
67     runtime.</para>
68
69     <para>At early boot and when the system manager configuration is
70     reloaded this <filename>/etc/crypttab</filename> is translated
71     into <filename>systemd-cryptsetup@.service</filename> units by
72     <citerefentry><refentrytitle>systemd-cryptsetup-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
73   </refsect1>
74
75   <refsect1>
76     <title>See Also</title>
77     <para>
78       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
79       <citerefentry><refentrytitle>systemd-cryptsetup-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
80       <citerefentry><refentrytitle>crypttab</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
81       <citerefentry project='die-net'><refentrytitle>cryptsetup</refentrytitle><manvolnum>8</manvolnum></citerefentry>
82      </para>
83   </refsect1>
84
85 </refentry>