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Diffstat (limited to 'man/systemd-halt.service.xml')
| -rw-r--r-- | man/systemd-halt.service.xml | 191 |
1 files changed, 92 insertions, 99 deletions
diff --git a/man/systemd-halt.service.xml b/man/systemd-halt.service.xml index 552dbdf687..c94e2a1820 100644 --- a/man/systemd-halt.service.xml +++ b/man/systemd-halt.service.xml @@ -1,6 +1,6 @@ <?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"> + "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> <!-- This file is part of systemd. @@ -23,103 +23,96 @@ <refentry id="systemd-halt.service"> - <refentryinfo> - <title>systemd-halt.service</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-halt.service</refentrytitle> - <manvolnum>8</manvolnum> - </refmeta> - - <refnamediv> - <refname>systemd-halt.service</refname> - <refname>systemd-poweroff.service</refname> - <refname>systemd-reboot.service</refname> - <refname>systemd-kexec.service</refname> - <refname>systemd-shutdown</refname> - <refpurpose>System shutdown logic</refpurpose> - </refnamediv> - - <refsynopsisdiv> - <para><filename>systemd-halt.service</filename></para> - <para><filename>systemd-poweroff.service</filename></para> - <para><filename>systemd-reboot.service</filename></para> - <para><filename>systemd-kexec.service</filename></para> - <para><filename>/usr/lib/systemd/systemd-shutdown</filename></para> - </refsynopsisdiv> - - <refsect1> - <title>Description</title> - - <para><filename>systemd-halt.service</filename> is a - system service that is pulled in by - <filename>halt.target</filename> and is responsible - for the actual system halt. Similarly, - <filename>systemd-poweroff.service</filename> is - pulled in by <filename>poweroff.target</filename>, - <filename>systemd-reboot.service</filename> by - <filename>reboot.target</filename> and - <filename>systemd-kexec.service</filename> by - <filename>kexec.target</filename> to execute the - respective actions.</para> - - <para>When these services are run, they ensure that PID - 1 is replaced by the - <filename>/usr/lib/systemd/systemd-shutdown</filename> - tool which is then responsible for the actual - shutdown. Before shutting down, this binary will try to - unmount all remaining file systems, disable all - remaining swap devices, detach all remaining storage - devices and kill all remaining processes.</para> - - <para>It is necessary to have this code in a separate binary - because otherwise rebooting after an upgrade might be broken — - the running PID 1 could still depend on libraries which are not - available any more, thus keeping the file system busy, which - then cannot be re-mounted read-only.</para> - - <para>Immediately before executing the actual system - halt/poweroff/reboot/kexec - <filename>systemd-shutdown</filename> will run all - executables in - <filename>/usr/lib/systemd/system-shutdown/</filename> - and pass one arguments to them: either - <literal>halt</literal>, - <literal>poweroff</literal>, - <literal>reboot</literal> or - <literal>kexec</literal>, depending on the chosen - action. All executables in this directory are executed - in parallel, and execution of the action is not - continued before all executables finished.</para> - - <para>Note that - <filename>systemd-halt.service</filename> (and the - related units) should never be executed - directly. Instead, trigger system shutdown with a - command such as <literal>systemctl halt</literal> or - suchlike.</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>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>, - <citerefentry><refentrytitle>reboot</refentrytitle><manvolnum>2</manvolnum></citerefentry>, - <citerefentry><refentrytitle>systemd-suspend.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> - </para> - </refsect1> + <refentryinfo> + <title>systemd-halt.service</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-halt.service</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-halt.service</refname> + <refname>systemd-poweroff.service</refname> + <refname>systemd-reboot.service</refname> + <refname>systemd-kexec.service</refname> + <refname>systemd-shutdown</refname> + <refpurpose>System shutdown logic</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>systemd-halt.service</filename></para> + <para><filename>systemd-poweroff.service</filename></para> + <para><filename>systemd-reboot.service</filename></para> + <para><filename>systemd-kexec.service</filename></para> + <para><filename>/usr/lib/systemd/systemd-shutdown</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-halt.service</filename> is a system + service that is pulled in by <filename>halt.target</filename> and + is responsible for the actual system halt. Similarly, + <filename>systemd-poweroff.service</filename> is pulled in by + <filename>poweroff.target</filename>, + <filename>systemd-reboot.service</filename> by + <filename>reboot.target</filename> and + <filename>systemd-kexec.service</filename> by + <filename>kexec.target</filename> to execute the respective + actions.</para> + + <para>When these services are run, they ensure that PID 1 is + replaced by the + <filename>/usr/lib/systemd/systemd-shutdown</filename> tool which + is then responsible for the actual shutdown. Before shutting down, + this binary will try to unmount all remaining file systems, + disable all remaining swap devices, detach all remaining storage + devices and kill all remaining processes.</para> + + <para>It is necessary to have this code in a separate binary + because otherwise rebooting after an upgrade might be broken — the + running PID 1 could still depend on libraries which are not + available any more, thus keeping the file system busy, which then + cannot be re-mounted read-only.</para> + + <para>Immediately before executing the actual system + halt/poweroff/reboot/kexec <filename>systemd-shutdown</filename> + will run all executables in + <filename>/usr/lib/systemd/system-shutdown/</filename> and pass + one arguments to them: either <literal>halt</literal>, + <literal>poweroff</literal>, <literal>reboot</literal> or + <literal>kexec</literal>, depending on the chosen action. All + executables in this directory are executed in parallel, and + execution of the action is not continued before all executables + finished.</para> + + <para>Note that <filename>systemd-halt.service</filename> (and the + related units) should never be executed directly. Instead, trigger + system shutdown with a command such as <literal>systemctl + halt</literal> or suchlike.</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>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>, + <citerefentry><refentrytitle>reboot</refentrytitle><manvolnum>2</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-suspend.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> </refentry> |