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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 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. | |
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-getty-generator"> | |
23 | ||
24 | <refentryinfo> | |
25 | <title>systemd-getty-generator</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-getty-generator</refentrytitle> | |
40 | <manvolnum>8</manvolnum> | |
41 | </refmeta> | |
42 | ||
43 | <refnamediv> | |
44 | <refname>systemd-getty-generator</refname> | |
45 | <refpurpose>Generator for enabling getty instances on | |
46 | the console</refpurpose> | |
47 | </refnamediv> | |
48 | ||
49 | <refsynopsisdiv> | |
50 | <para><filename>/usr/lib/systemd/system-generators/systemd-getty-generator</filename></para> | |
51 | </refsynopsisdiv> | |
52 | ||
53 | <refsect1> | |
54 | <title>Description</title> | |
55 | ||
56 | <para><filename>systemd-getty-generator</filename> is | |
57 | a generator that automatically instantiates | |
58 | <filename>serial-getty@.service</filename> on the | |
59 | kernel console <filename>/dev/console</filename> if | |
60 | that is not directed to the virtual console | |
61 | subsystem. It will also instantiate | |
62 | <filename>serial-getty@.service</filename> instances | |
63 | for virtualizer consoles, if execution in a | |
64 | virtualized environment is detected. This should | |
65 | ensure that the user is shown a login prompt at the | |
66 | right place, regardless in which environment the | |
67 | system is started. For example, it is sufficient to | |
68 | redirect the kernel console with a kernel command line | |
69 | argument such as <varname>console=</varname> to get | |
70 | both kernel messages and a getty prompt on a serial | |
71 | TTY. See <ulink | |
72 | url="https://www.kernel.org/doc/Documentation/kernel-parameters.txt"><filename>kernel-parameters.txt</filename></ulink> | |
73 | for more information on the | |
74 | <varname>console=</varname> kernel parameter.</para> | |
75 | ||
76 | <para><filename>systemd-getty-generator</filename> | |
77 | implements the <ulink | |
8fd1952f | 78 | url="http://www.freedesktop.org/wiki/Software/systemd/Generators">generator |
f220d83c | 79 | specification</ulink>.</para> |
00addadd LP |
80 | |
81 | <para>Further information about configuration of | |
82 | gettys you may find in <ulink | |
83 | url="http://0pointer.de/blog/projects/serial-console.html">systemd | |
84 | for Administrators, Part XVI: Gettys on Serial | |
85 | Consoles (and Elsewhere)</ulink>.</para> | |
f220d83c LP |
86 | </refsect1> |
87 | ||
88 | <refsect1> | |
89 | <title>See Also</title> | |
90 | <para> | |
91 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
92 | <citerefentry><refentrytitle>agetty</refentrytitle><manvolnum>8</manvolnum></citerefentry> | |
93 | </para> | |
94 | </refsect1> | |
95 | ||
96 | </refentry> |