6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering<?xml version='1.0'?> <!--*-nxml-*-->

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"

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6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering

96cde13ace6406582688028f3df5668a172ba628Zbigniew Jędrzejewski-Szmek

96cde13ace6406582688028f3df5668a172ba628Zbigniew Jędrzejewski-Szmek<refentry id="kernel-command-line">

96cde13ace6406582688028f3df5668a172ba628Zbigniew Jędrzejewski-Szmek

96cde13ace6406582688028f3df5668a172ba628Zbigniew Jędrzejewski-Szmek <refentryinfo>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <title>kernel-command-line</title>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <productname>systemd</productname>

96cde13ace6406582688028f3df5668a172ba628Zbigniew Jędrzejewski-Szmek

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <authorgroup>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <author>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <contrib>Developer</contrib>

96cde13ace6406582688028f3df5668a172ba628Zbigniew Jędrzejewski-Szmek <firstname>Lennart</firstname>

96cde13ace6406582688028f3df5668a172ba628Zbigniew Jędrzejewski-Szmek <surname>Poettering</surname>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <email>lennart@poettering.net</email>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering </author>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering </authorgroup>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering </refentryinfo>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <refmeta>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <refentrytitle>kernel-command-line</refentrytitle>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <manvolnum>7</manvolnum>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering </refmeta>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <refnamediv>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <refname>kernel-command-line</refname>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <refpurpose>Kernel command line parameters</refpurpose>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering </refnamediv>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <refsynopsisdiv>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <para><filename>/proc/cmdline</filename></para>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering </refsynopsisdiv>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <refsect1>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <title>Description</title>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <para>The kernel, the initial RAM disk (initrd) and

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering basic userspace functionality may be configured at boot via

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering kernel command line arguments.</para>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <para>For command line parameters understood by the

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering kernel please see <ulink

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering url="https://www.kernel.org/doc/Documentation/kernel-parameters.txt"><filename>kernel-parameters.txt</filename></ulink>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering and

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <citerefentry><refentrytitle>bootparam</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <para>For command line parameters understood by the

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering initial RAM disk, please see

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering <citerefentry><refentrytitle>dracut.cmdline</refentrytitle><manvolnum>7</manvolnum></citerefentry>,

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering or the documentation of the specific initrd

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering implementation of your installation.</para>

96cde13ace6406582688028f3df5668a172ba628Zbigniew Jędrzejewski-Szmek </refsect1>

96cde13ace6406582688028f3df5668a172ba628Zbigniew Jędrzejewski-Szmek

96cde13ace6406582688028f3df5668a172ba628Zbigniew Jędrzejewski-Szmek <refsect1>

96cde13ace6406582688028f3df5668a172ba628Zbigniew Jędrzejewski-Szmek <title>Core OS Command Line Arguments</title>

6c03089c32c251d823173bda4d809a9e643219f0Lennart Poettering

96cde13ace6406582688028f3df5668a172ba628Zbigniew Jędrzejewski-Szmek <variablelist class='kernel-commandline-options'>

96cde13ace6406582688028f3df5668a172ba628Zbigniew Jędrzejewski-Szmek <varlistentry>

96cde13ace6406582688028f3df5668a172ba628Zbigniew Jędrzejewski-Szmek <term><varname>systemd.unit=</varname></term>

<term><varname>rd.systemd.unit=</varname></term>

<term><varname>systemd.dump_core=</varname></term>

<term><varname>systemd.crash_shell=</varname></term>

<term><varname>systemd.crash_chvt=</varname></term>

<term><varname>systemd.confirm_spawn=</varname></term>

<term><varname>systemd.show_status=</varname></term>

<term><varname>systemd.log_target=</varname></term>

<term><varname>systemd.log_level=</varname></term>

<term><varname>systemd.log_color=</varname></term>

<term><varname>systemd.log_location=</varname></term>

<term><varname>systemd.default_standard_output=</varname></term>

<term><varname>systemd.default_standard_error=</varname></term>

<term><varname>systemd.setenv=</varname></term>

<listitem>

<para>Parameters understood by

the system and service manager

to control system behavior. For details see

<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>

</listitem>

</varlistentry>

<varlistentry>

<term><varname>quiet</varname></term>

<listitem>

<para>Parameter understood by

both the kernel and the system

and service manager to control

console log verbosity. For

details see

<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>

</listitem>

</varlistentry>

<varlistentry>

<term><varname>debug</varname></term>

<listitem>

<para>Parameter understood by

both the kernel and the system

and service manager to control

console log verbosity. For

details see

<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>

</listitem>

</varlistentry>

<varlistentry>

<term><varname>emergency</varname></term>

<term><varname>single</varname></term>

<term><varname>s</varname></term>

<term><varname>S</varname></term>

<term><varname>1</varname></term>

<term><varname>2</varname></term>

<term><varname>3</varname></term>

<term><varname>4</varname></term>

<term><varname>5</varname></term>

<listitem>

<para>Parameters understood by

the system and service

manager, as compatibility

options. For details see

<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>

</listitem>

</varlistentry>

<varlistentry>

<term><varname>locale.LANG=</varname></term>

<term><varname>locale.LANGUAGE=</varname></term>

<term><varname>locale.LC_CTYPE=</varname></term>

<term><varname>locale.LC_NUMERIC=</varname></term>

<term><varname>locale.LC_TIME=</varname></term>

<term><varname>locale.LC_COLLATE=</varname></term>

<term><varname>locale.LC_MONETARY=</varname></term>

<term><varname>locale.LC_MESSAGES=</varname></term>

<term><varname>locale.LC_PAPER=</varname></term>

<term><varname>locale.LC_NAME=</varname></term>

<term><varname>locale.LC_ADDRESS=</varname></term>

<term><varname>locale.LC_TELEPHONE=</varname></term>

<term><varname>locale.LC_MEASUREMENT=</varname></term>

<term><varname>locale.LC_IDENTIFICATION=</varname></term>

<listitem>

<para>Parameters understood by

the system and service manager

to control locale and language

settings. For details see

<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>

</listitem>

</varlistentry>

<varlistentry>

<term><varname>fsck.mode=</varname></term>

<listitem>

<para>Parameter understood by

the file system checker

services. For details see

<citerefentry><refentrytitle>systemd-fsck@.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>

</listitem>

</varlistentry>

<varlistentry>

<term><varname>quotacheck.mode=</varname></term>

<listitem>

<para>Parameter understood by

the file quota checker

service. For details see

<citerefentry><refentrytitle>systemd-quotacheck.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>

</listitem>

</varlistentry>

<varlistentry>

<term><varname>systemd.journald.forward_to_syslog=</varname></term>

<term><varname>systemd.journald.forward_to_kmsg=</varname></term>

<term><varname>systemd.journald.forward_to_console=</varname></term>

<listitem>

<para>Parameters understood by

the journal service. For

details see

<citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>

</listitem>

</varlistentry>

<varlistentry>

<term><varname>vconsole.keymap=</varname></term>

<term><varname>vconsole.keymap.toggle=</varname></term>

<term><varname>vconsole.font=</varname></term>

<term><varname>vconsole.font.map=</varname></term>

<term><varname>vconsole.font.unimap=</varname></term>

<listitem>

<para>Parameters understood by

the virtual console setup logic. For

details see

<citerefentry><refentrytitle>systemd-vconsole-setup.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>

</listitem>

</varlistentry>

<varlistentry>

<term><varname>udev.log-priority=</varname></term>

<term><varname>rd.udev.log-priority=</varname></term>

<term><varname>udev.children-max=</varname></term>

<term><varname>rd.udev.children-max=</varname></term>

<term><varname>udev.exec-delay=</varname></term>

<term><varname>rd.udev.exec-delay=</varname></term>

<term><varname>net.ifnames=</varname></term>

<listitem>

<para>Parameters understood by

the device event managing daemon. For

details see

<citerefentry><refentrytitle>systemd-udevd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>

</listitem>

</varlistentry>

<varlistentry>

<term><varname>plymouth.enable=</varname></term>

<listitem>

<para>May be used to disable

the Plymouth boot splash. For

details see

<citerefentry><refentrytitle>plymouth</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>

</listitem>

</varlistentry>

<varlistentry>

<term><varname>luks=</varname></term>

<term><varname>rd.luks=</varname></term>

<term><varname>luks.crypttab=</varname></term>

<term><varname>rd.luks.crypttab=</varname></term>

<term><varname>luks.uuid=</varname></term>

<term><varname>rd.luks.uuid=</varname></term>

<term><varname>luks.key=</varname></term>

<term><varname>rd.luks.key=</varname></term>

<listitem>

<para>Configures the LUKS

full-disk encryption logic at

boot. For details see

<citerefentry><refentrytitle>systemd-cryptsetup-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>

</listitem>

</varlistentry>

<varlistentry>

<term><varname>fstab=</varname></term>

<term><varname>rd.fstab=</varname></term>

<listitem>

<para>Configures the

<filename>/etc/fstab</filename>

logic at boot. For details see

<citerefentry><refentrytitle>systemd-fstab-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>

</listitem>

</varlistentry>

<varlistentry>

<term><varname>modules-load=</varname></term>

<term><varname>rd.modules-load=</varname></term>

<listitem>

<para>Load a specific kernel

module early at boot. For

details see

<citerefentry><refentrytitle>systemd-modules-load.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>

</listitem>

</varlistentry>

</variablelist>

</refsect1>

<refsect1>

<title>See Also</title>

<para>

<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,

<citerefentry><refentrytitle>bootparam</refentrytitle><manvolnum>7</manvolnum></citerefentry>,

<citerefentry><refentrytitle>dracut.cmdline</refentrytitle><manvolnum>7</manvolnum></citerefentry>,

<citerefentry><refentrytitle>systemd-fsck@.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,

<citerefentry><refentrytitle>systemd-quotacheck.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,

<citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,

<citerefentry><refentrytitle>systemd-vconsole-setup.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,

<citerefentry><refentrytitle>systemd-udevd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,

<citerefentry><refentrytitle>plymouth</refentrytitle><manvolnum>8</manvolnum></citerefentry>,

<citerefentry><refentrytitle>systemd-cryptsetup-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,

<citerefentry><refentrytitle>systemd-fstab-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,

<citerefentry><refentrytitle>systemd-modules-load.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>

</para>

</refsect1>

</refentry>