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Diffstat (limited to 'src/systemd-debug-generator/systemd-debug-generator.xml')
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diff --git a/src/systemd-debug-generator/systemd-debug-generator.xml b/src/systemd-debug-generator/systemd-debug-generator.xml new file mode 100644 index 0000000000..5c5e9fc4a1 --- /dev/null +++ b/src/systemd-debug-generator/systemd-debug-generator.xml @@ -0,0 +1,95 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2014 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="systemd-debug-generator"> + + <refentryinfo> + <title>systemd-debug-generator</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-debug-generator</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-debug-generator</refname> + <refpurpose>Generator for enabling a runtime debug shell and + masking specific units at boot</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>/usr/lib/systemd/system-generators/systemd-debug-generator</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-debug-generator</filename> is a generator + that reads the kernel command line and understands three + options:</para> + + <para>If the <option>systemd.mask=</option> option is specified + and followed by a unit name, this unit is masked for the runtime, + similar to the effect of + <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>'s + <command>mask</command> command. This is useful to boot with + certain units removed from the initial boot transaction for + debugging system startup. May be specified more than once.</para> + + <para>If the <option>systemd.wants=</option> option is specified + and followed by a unit name, a start job for this unit is added to + the initial transaction. This is useful to start one or more + additional units at boot. May be specified more than once.</para> + + <para>If the <option>systemd.debug-shell</option> option is + specified, the debug shell service + <literal>debug-shell.service</literal> is pulled into the boot + transaction. It will spawn a debug shell on tty9 during early + system startup. Note that the shell may also be turned on + persistently by enabling it with + <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>'s + <command>enable</command> command.</para> + + <para><filename>systemd-debug-generator</filename> implements + <citerefentry><refentrytitle>systemd.generator</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>kernel-command-line</refentrytitle><manvolnum>7</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> |