3 <!DOCTYPE refentry PUBLIC
"-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
5 SPDX-License-Identifier: LGPL-2.1+
7 This file is part of systemd.
9 Copyright 2012 Lennart Poettering
11 <refentry id=
"systemd-getty-generator">
14 <title>systemd-getty-generator
</title>
15 <productname>systemd
</productname>
19 <contrib>Developer
</contrib>
20 <firstname>Lennart
</firstname>
21 <surname>Poettering
</surname>
22 <email>lennart@poettering.net
</email>
28 <refentrytitle>systemd-getty-generator
</refentrytitle>
29 <manvolnum>8</manvolnum>
33 <refname>systemd-getty-generator
</refname>
34 <refpurpose>Generator for enabling getty instances on the
39 <para><filename>/usr/lib/systemd/system-generators/systemd-getty-generator
</filename></para>
43 <title>Description
</title>
45 <para><filename>systemd-getty-generator
</filename> is a generator
46 that automatically instantiates
47 <filename>serial-getty@.service
</filename> on the kernel
48 console(s), if they can function as ttys and are not provided by
49 the virtual console subsystem. It will also instantiate
50 <filename>serial-getty@.service
</filename> instances for
51 virtualizer consoles, if execution in a virtualized environment is
52 detected. If execution in a container environment is detected, it
53 will instead enable
<filename>console-getty.service
</filename> for
54 <filename>/dev/console
</filename>, and
55 <filename>container-getty@.service
</filename> instances for
56 additional container pseudo TTYs as requested by the container
58 url=
"https://www.freedesktop.org/wiki/Software/systemd/ContainerInterface/"><filename>Container
59 Interface
</filename></ulink>). This should ensure that the user is
60 shown a login prompt at the right place, regardless of which
61 environment the system is started in. For example, it is
62 sufficient to redirect the kernel console with a kernel command
63 line argument such as
<varname>console=
</varname> to get both
64 kernel messages and a getty prompt on a serial TTY. See
<ulink
65 url=
"https://www.kernel.org/doc/Documentation/admin-guide/kernel-parameters.txt"><filename>kernel-parameters.txt
</filename></ulink>
66 for more information on the
<varname>console=
</varname> kernel
69 <para><filename>systemd-getty-generator
</filename> implements
70 <citerefentry><refentrytitle>systemd.generator
</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
</para>
72 <para>Further information about configuration of gettys can be
74 <ulink url=
"http://0pointer.de/blog/projects/serial-console.html">systemd
75 for Administrators, Part XVI: Gettys on Serial Consoles (and
76 Elsewhere)
</ulink>.
</para>
80 <title>See Also
</title>
82 <citerefentry><refentrytitle>systemd
</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
83 <citerefentry project='man-pages'
><refentrytitle>agetty
</refentrytitle><manvolnum>8</manvolnum></citerefentry>