From c66e7bc7a19c068ca1c414f2f8bd5dc13c20907f Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 22 Jun 2012 01:35:52 +0200
Subject: man: document all kernel command line options we understand

---
 man/systemd.xml | 109 +++++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 105 insertions(+), 4 deletions(-)

(limited to 'man/systemd.xml')

diff --git a/man/systemd.xml b/man/systemd.xml
index d179273caa..bf450d51c8 100644
--- a/man/systemd.xml
+++ b/man/systemd.xml
@@ -971,6 +971,7 @@
                 <variablelist>
                         <varlistentry>
                                 <term><varname>systemd.unit=</varname></term>
+                                <term><varname>rd.systemd.unit=</varname></term>
 
                                 <listitem><para>Overrides the unit to
                                 activate on boot. Defaults to
@@ -980,8 +981,12 @@
                                 <filename>rescue.target</filename> or
                                 <filename>emergency.service</filename>. See
                                 <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>
-                                for details about these
-                                units.</para></listitem>
+                                for details about these units. The
+                                option prefixed with
+                                <literal>rd.</literal> is honoured
+                                only in the initial RAM disk (initrd),
+                                while the one that isn't prefixed only
+                                in the main system.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
@@ -1036,7 +1041,11 @@
                                 argument. If <option>true</option>
                                 shows terse service status updates on
                                 the console during bootup. Defaults to
-                                <option>true</option>.</para></listitem>
+                                <option>true</option>, unless
+                                <option>quiet</option> is passed as
+                                kernel command line option in which
+                                case it defaults to
+                                <option>false</option>.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
@@ -1093,7 +1102,98 @@
                                 disk.</para></listitem>
                         </varlistentry>
 
+                        <varlistentry>
+                                <term><varname>quiet</varname></term>
+
+                                <listitem><para>If passed turns off
+                                status output at boot, and disconnects
+                                SysV scripts from the console, much
+                                like
+                                <varname>systemd.show_status=false</varname>
+                                and
+                                <varname>systemd.sysv_console=false</varname>
+                                would. Note that this option is also
+                                read by the kernel itself and disables
+                                kernel log output to the
+                                kernel. Passing this option hence
+                                turns off the usual output from both
+                                the system manager and the
+                                kernel.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><varname>emergency</varname></term>
+
+                                <listitem><para>Boot into emergency
+                                mode. This is equivalent to
+                                <varname>systemd.unit=emergency.target</varname>
+                                and provided for compatibility
+                                reasons and to be easier to type.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><varname>single</varname></term>
+                                <term><varname>s</varname></term>
+                                <term><varname>S</varname></term>
+                                <term><varname>1</varname></term>
+
+                                <listitem><para>Boot into rescue
+                                mode. This is equivalent to
+                                <varname>systemd.unit=rescue.target</varname>
+                                and provided for compatibility reasons
+                                and to be easier to
+                                type.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><varname>2</varname></term>
+                                <term><varname>3</varname></term>
+                                <term><varname>4</varname></term>
+                                <term><varname>5</varname></term>
+
+                                <listitem><para>Boot into the
+                                specified legacy SysV runlevel. This
+                                is equivalent to
+                                <varname>systemd.unit=runlevel2.target</varname>,
+                                <varname>systemd.unit=runlevel3.target</varname>,
+                                <varname>systemd.unit=runlevel4.target</varname>,
+                                resp. <varname>systemd.unit=runlevel5.target</varname>
+                                and provided for compatibility reasons
+                                and to be easier to
+                                type.</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>Set the system locale
+                                to use. This overrides the settings in
+                                <filename>/etc/locale.conf</filename>. For
+                                more information see
+                                <citerefentry><refentrytitle>locale.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                                and
+                                <citerefentry><refentrytitle>locale</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
+                                </para></listitem>
+                        </varlistentry>
                 </variablelist>
+
+                <para>For other kernel command line parameters
+                understood by components of the core OS, please refer
+                to
+                <citerefentry><refentrytitle>kernel-command-line</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
         </refsect1>
 
         <refsect1>
@@ -1160,7 +1260,8 @@
                         <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
-                        <citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+                        <citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>kernel-command-line</refentrytitle><manvolnum>7</manvolnum></citerefentry>
                 </para>
         </refsect1>
 
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