Avoid killing mdmon at shutdown/reboot

bootscripts/lfs/init.d/sendsignals

@@ -29,8 +29,11 @@
 
 case "${1}" in
    stop)
+      omit=$(pidof mdmon)
+      [ -n "$omit" ] && omit="-o $omit"
+
       log_info_msg "Sending all processes the TERM signal..."
-      killall5 -15
+      killall5 -15 $omit
       error_value=${?}
 
       sleep ${KILLDELAY}
@@ -42,7 +45,7 @@ case "${1}" in
       fi
 
       log_info_msg "Sending all processes the KILL signal..."
-      killall5 -9
+      killall5 -9 $omit
       error_value=${?}
 
       sleep ${KILLDELAY}

chapter01/changelog.xml

@@ -42,6 +42,16 @@
     <listitem revision="sysv"> or <listitem revision="systemd"> as
     appropriate for the entry or if needed the entire day's listitem.
     -->
+    <listitem>
+      <para>2021-06-02</para>
+      <itemizedlist>
+        <listitem>
+          <para>[thomas] - Tweak sendsignal bootscript to avoid
+            killing mdmod (if active).</para>
+        </listitem>
+      </itemizedlist>
+    </listitem>
+
     <listitem>
       <para>2021-05-31</para>
       <itemizedlist>