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65 lines
2.9 KiB
XML
65 lines
2.9 KiB
XML
<?xml version="1.0"?>
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<!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!-- SPDX-License-Identifier: LGPL-2.1+ -->
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<refentry id="systemd-getty-generator">
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<refentryinfo>
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<title>systemd-getty-generator</title>
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<productname>systemd</productname>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd-getty-generator</refentrytitle>
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<manvolnum>8</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd-getty-generator</refname>
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<refpurpose>Generator for enabling getty instances on the
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console</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename>/usr/lib/systemd/system-generators/systemd-getty-generator</filename></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><filename>systemd-getty-generator</filename> is a generator that automatically instantiates
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<filename>serial-getty@.service</filename> on the kernel console(s), if they can function as ttys and are
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not provided by the virtual console subsystem. It will also instantiate
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<filename>serial-getty@.service</filename> instances for virtualizer consoles, if execution in a
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virtualized environment is detected. If execution in a container environment is detected, it will instead
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enable <filename>console-getty.service</filename> for <filename>/dev/console</filename>, and
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<filename>container-getty@.service</filename> instances for additional container pseudo TTYs as requested
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by the container manager (see <ulink url="https://systemd.io/CONTAINER_INTERFACE"><filename>Container
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Interface</filename></ulink>). This should ensure that the user is shown a login prompt at the right
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place, regardless of which environment the system is started in. For example, it is sufficient to
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redirect the kernel console with a kernel command line argument such as <varname>console=</varname> to
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get both kernel messages and a getty prompt on a serial TTY. See <ulink
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url="https://www.kernel.org/doc/Documentation/admin-guide/kernel-parameters.txt"><filename>kernel-parameters.txt</filename></ulink>
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for more information on the <varname>console=</varname> kernel parameter.</para>
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<para><filename>systemd-getty-generator</filename> implements
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<citerefentry><refentrytitle>systemd.generator</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
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<para>Further information about configuration of gettys can be
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found in
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<ulink url="http://0pointer.de/blog/projects/serial-console.html">systemd
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for Administrators, Part XVI: Gettys on Serial Consoles (and
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Elsewhere)</ulink>.</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry project='man-pages'><refentrytitle>agetty</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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