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docs: Clarify where options are read from

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Let's merge the footnote with the overall explanation of where systemd
parses its options from and reword the section a bit to hopefully make
things a bit more clear.
This commit is contained in:
Daan De Meyer 2022-04-19 21:57:53 +02:00 committed by Lennart Poettering
parent fd74ed23c7
commit ef2c966acc
1 changed files with 8 additions and 7 deletions
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15
man/systemd.xml
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@ -742,13 +742,14 @@
<refsect1>
<title>Kernel Command Line</title>
<para>When run as the system instance systemd parses a number of options listed below. They can be
specified as kernel command line arguments<footnote><para>If run inside a Linux container these arguments
may be passed as command line arguments to systemd itself, next to any of the command line options listed
in the Options section above. If run outside of Linux containers, these arguments are parsed from
<filename>/proc/cmdline</filename> instead.</para></footnote>, or through the
<literal>SystemdOptions</literal> EFI variable (on EFI systems). The kernel command line has higher
priority. Following variables are understood:</para>
<para>When run as the system instance, systemd parses a number of options listed below. They can be
specified as kernel command line arguments which are parsed from a number of sources depending on the
environment in which systemd is executed. If run inside a Linux container, these options are parsed from
the command line arguments passed to systemd itself, next to any of the command line options listed in
the Options section above. If run outside of Linux containers, these arguments are parsed from
<filename>/proc/cmdline</filename> and from the <literal>SystemdOptions</literal> EFI variable
(on EFI systems) instead. Options from <filename>/proc/cmdline</filename> have higher priority. The
following variables are understood:</para>
<variablelist class='kernel-commandline-options'>
<varlistentry>