+ will not query the user for basic system settings, even if the system boots up for the first time and
+ the relevant settings are not initialized yet. Not to be confused with
+ <varname>systemd.condition-first-boot=</varname> (see below), which overrides the result of the
+ <varname>ConditionFirstBoot=</varname> unit file condition, and thus controls more than just
+ <filename>systemd-firstboot.service</filename> behaviour.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>systemd.condition-needs-update=</varname></term>
+
+ <listitem><para>Takes a boolean argument. If specified, overrides the result of
+ <varname>ConditionNeedsUpdate=</varname> unit condition checks. See
+ <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry> for
+ details.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>systemd.condition-first-boot=</varname></term>
+
+ <listitem><para>Takes a boolean argument. If specified, overrides the result of
+ <varname>ConditionFirstBoot=</varname> unit condition checks. See
+ <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry> for
+ details. Not to be confused with <varname>systemd.firstboot=</varname> which only controls behaviour
+ of the <filename>systemd-firstboot.service</filename> system service but has no effect on the
+ condition check (see above).</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>systemd.clock-usec=</varname></term>
+
+ <listitem><para>Takes a decimal, numeric timestamp in µs since January 1st 1970, 00:00am, to set the
+ system clock to. The system time is set to the specified timestamp early during
+ boot. It is not propagated to the hardware clock (RTC).</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>systemd.hostname=</varname></term>
+
+ <listitem><para>Accepts a hostname to set during early boot. If specified takes precedence over what
+ is set in <filename>/etc/hostname</filename>. Note that this does not bar later runtime changes to
+ the hostname, it simply controls the initial hostname set during early boot.</para></listitem>