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Diffstat (limited to 'man/runlevel.xml')
| -rw-r--r-- | man/runlevel.xml | 62 |
1 files changed, 53 insertions, 9 deletions
diff --git a/man/runlevel.xml b/man/runlevel.xml index fc1f523855..ca29c7c22c 100644 --- a/man/runlevel.xml +++ b/man/runlevel.xml @@ -51,11 +51,62 @@ <refsynopsisdiv> <cmdsynopsis> - <command>runlevel <arg choice="opt" rep="repeat">options</arg></command> + <command>runlevel</command> + <arg choice="opt" rep="repeat">options</arg> </cmdsynopsis> </refsynopsisdiv> <refsect1> + <title>Overview</title> + + <para>"Runlevels" are an obsolete way to start and stop groups of + services used in SysV init. systemd provides a compatibility layer + that maps runlevels to targets, and associated binaries like + <command>runlevel</command>. Nevertheless, only one runlevel can + be "active" at a given time, while systemd can activate multiple + targets concurrently, so the mapping to runlevels is confusing + and only approximate. Runlevels should not be used in new code, + and are mostly useful as a shorthand way to refer the matching + systemd targets in kernel boot parameters.</para> + + <table> + <title>Mapping between runlevels and systemd targets</title> + <tgroup cols='2' align='left' colsep='1' rowsep='1'> + <colspec colname="runlevel" /> + <colspec colname="target" /> + <thead> + <row> + <entry>Runlevel</entry> + <entry>Target</entry> + </row> + </thead> + <tbody> + <row> + <entry>0</entry> + <entry><filename>poweroff.target</filename></entry> + </row> + <row> + <entry>1</entry> + <entry><filename>rescue.target</filename></entry> + </row> + <row> + <entry>2, 3, 4</entry> + <entry><filename>multi-user.target</filename></entry> + </row> + <row> + <entry>5</entry> + <entry><filename>graphical.target</filename></entry> + </row> + <row> + <entry>6</entry> + <entry><filename>reboot.target</filename></entry> + </row> + </tbody> + </tgroup> + </table> + </refsect1> + + <refsect1> <title>Description</title> <para><command>runlevel</command> prints the previous and current @@ -130,17 +181,10 @@ </refsect1> <refsect1> - <title>Notes</title> - - <para>This is a legacy command available for compatibility only. - It should not be used anymore, as the concept of runlevels is - obsolete.</para> - </refsect1> - - <refsect1> <title>See Also</title> <para> <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd.target</refentrytitle><manvolnum>5</manvolnum></citerefentry>, <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry> </para> </refsect1> |