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296 lines
17 KiB
XML
296 lines
17 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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This file is part of systemd.
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Copyright 2012 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="kernel-command-line">
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<refentryinfo>
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<title>kernel-command-line</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Lennart</firstname>
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<surname>Poettering</surname>
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<email>lennart@poettering.net</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>kernel-command-line</refentrytitle>
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<manvolnum>7</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>kernel-command-line</refname>
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<refpurpose>Kernel Command Line Parameters</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename>/proc/cmdline</filename></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>The kernel, the initial RAM disk (initrd) and
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basic userspace functionality may be configured at boot via
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kernel command line arguments.</para>
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<para>For command line parameters understood by the
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kernel please see <ulink
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url="https://www.kernel.org/doc/Documentation/kernel-parameters.txt"><filename>kernel-parameters.txt</filename></ulink>
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and
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<citerefentry><refentrytitle>bootparam</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
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<para>For command line paramaters understood by the
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initial RAM disk, please see
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<citerefentry><refentrytitle>dracut.cmdline</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
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or the documentation of the specific initrd
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implementation of your installation.</para>
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</refsect1>
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<refsect1>
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<title>Core OS Command Line Arguments</title>
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<variablelist>
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<varlistentry>
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<term><varname>systemd.unit=</varname></term>
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<term><varname>rd.systemd.unit=</varname></term>
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<term><varname>systemd.dump_core=</varname></term>
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<term><varname>systemd.crash_shell=</varname></term>
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<term><varname>systemd.crash_chvt=</varname></term>
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<term><varname>systemd.confirm_spawn=</varname></term>
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<term><varname>systemd.show_status=</varname></term>
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<term><varname>systemd.log_target=</varname></term>
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<term><varname>systemd.log_level=</varname></term>
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<term><varname>systemd.log_color=</varname></term>
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<term><varname>systemd.log_location=</varname></term>
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<term><varname>systemd.default_standard_output=</varname></term>
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<term><varname>systemd.default_standard_error=</varname></term>
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<term><varname>systemd.setenv=</varname></term>
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<listitem>
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<para>Parameters understood by
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the system and service manager
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to control system behaviour. For details see
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>quiet</varname></term>
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<listitem>
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<para>Parameter understood by
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both the kernel and the system
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and service manager to control
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console log verbosity. For
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details see
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>emergency</varname></term>
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<term><varname>single</varname></term>
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<term><varname>s</varname></term>
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<term><varname>S</varname></term>
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<term><varname>1</varname></term>
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<term><varname>2</varname></term>
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<term><varname>3</varname></term>
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<term><varname>4</varname></term>
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<term><varname>5</varname></term>
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<listitem>
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<para>Parameters understood by
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the system and service
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manager, as compatibility
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options. For details see
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>locale.LANG=</varname></term>
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<term><varname>locale.LANGUAGE=</varname></term>
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<term><varname>locale.LC_CTYPE=</varname></term>
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<term><varname>locale.LC_NUMERIC=</varname></term>
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<term><varname>locale.LC_TIME=</varname></term>
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<term><varname>locale.LC_COLLATE=</varname></term>
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<term><varname>locale.LC_MONETARY=</varname></term>
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<term><varname>locale.LC_MESSAGES=</varname></term>
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<term><varname>locale.LC_PAPER=</varname></term>
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<term><varname>locale.LC_NAME=</varname></term>
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<term><varname>locale.LC_ADDRESS=</varname></term>
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<term><varname>locale.LC_TELEPHONE=</varname></term>
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<term><varname>locale.LC_MEASUREMENT=</varname></term>
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<term><varname>locale.LC_IDENTIFICATION=</varname></term>
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<listitem>
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<para>Parameters understood by
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the system and service manager
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to control locale and language
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settings. For details see
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>fsck.mode=</varname></term>
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<listitem>
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<para>Parameter understood by
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the file system checker
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services. For details see
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<citerefentry><refentrytitle>systemd-fsck@.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>quotacheck.mode=</varname></term>
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<listitem>
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<para>Parameter understood by
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the file quota checker
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service. For details see
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<citerefentry><refentrytitle>systemd-quotacheck.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>systemd.journald.forward_to_syslog=</varname></term>
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<term><varname>systemd.journald.forward_to_kmsg=</varname></term>
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<term><varname>systemd.journald.forward_to_console=</varname></term>
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<listitem>
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<para>Parameters understood by
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the journal service. For
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details see
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<citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>vconsole.keymap=</varname></term>
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<term><varname>vconsole.keymap.toggle=</varname></term>
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<term><varname>vconsole.font=</varname></term>
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<term><varname>vconsole.font.map=</varname></term>
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<term><varname>vconsole.font.unimap=</varname></term>
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<listitem>
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<para>Parameters understood by
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the virtual console setup logic. For
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details see
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<citerefentry><refentrytitle>systemd-vconsole-setup.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>udev.log-priority=</varname></term>
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<term><varname>rd.udev.log-priority=</varname></term>
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<term><varname>udev.children-max=</varname></term>
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<term><varname>rd.udev.children-max=</varname></term>
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<term><varname>udev.exec-delay=</varname></term>
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<term><varname>rd.udev.exec-delay=</varname></term>
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<listitem>
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<para>Parameters understood by
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the device event managing daemon. For
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details see
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<citerefentry><refentrytitle>systemd-udevd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>plymouth.enable=</varname></term>
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<listitem>
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<para>May be used to disable
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the Plymouth boot splash. For
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details see
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<citerefentry><refentrytitle>plymouth</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>luks=</varname></term>
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<term><varname>rd.luks=</varname></term>
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<term><varname>luks.crypttab=</varname></term>
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<term><varname>rd.luks.crypttab=</varname></term>
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<term><varname>luks.uuid=</varname></term>
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<term><varname>rd.luks.uuid=</varname></term>
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<listitem>
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<para>Configures the LUKS
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full-disk encryption logic at
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boot. For details see
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<citerefentry><refentrytitle>systemd-cryptsetup-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>fstab=</varname></term>
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<term><varname>rd.fstab=</varname></term>
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<listitem>
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<para>Configures the
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<filename>/etc/fstab</filename>
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logic at boot. For details see
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<citerefentry><refentrytitle>systemd-fstab-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>modules-load=</varname></term>
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<term><varname>rd.modules-load=</varname></term>
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<listitem>
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<para>Load a specific kernel
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boot early at boot. For
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details see
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<citerefentry><refentrytitle>systemd-modules-load.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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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><refentrytitle>bootparam</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>dracut.cmdline</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-fsck@.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-quotacheck.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-vconsole-setup.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-udevd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>plymouth</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-cryptsetup-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-fstab-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-modules-load.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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