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Diffstat (limited to 'man/tmpfiles.d.xml')
| -rw-r--r-- | man/tmpfiles.d.xml | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/man/tmpfiles.d.xml b/man/tmpfiles.d.xml index 331fd1b472..0da52aedad 100644 --- a/man/tmpfiles.d.xml +++ b/man/tmpfiles.d.xml @@ -113,6 +113,9 @@ L /tmp/foobar - - - - /dev/null</programlisting> <refsect2> <title>Type</title> + <para>The type consists of a single letter and + optionally an exclamation mark.</para> + <para>The following line types are understood:</para> <variablelist> @@ -262,6 +265,28 @@ L /tmp/foobar - - - - /dev/null</programlisting> names.</para></listitem> </varlistentry> </variablelist> + + <para>If the exclamation mark is used, this + line is only safe of execute during boot, and + can break a running system. Lines without the + exclamation mark are presumed to be safe to + execute at any time, e.g. on package upgrades. + <command>systemd-tmpfiles</command> will + execute line with an exclamation mark only if + option <option>--unsafe</option> is given. + </para> + + <para>For example: + <programlisting> +# Make sure these are created by default so that nobody else can +d /tmp/.X11-unix 1777 root root 10d + +# Unlink the X11 lock files +r! /tmp/.X[0-9]*-lock + </programlisting> + The second line in contrast to the first one + would break a running system, and will only be + executed with <option>--unsafe</option>.</para> </refsect2> <refsect2> |