MDEV-7368 : SLES: Failed to start mysql.service: Unit

mysql.service failed to load

Added 'systemctl daemon-reload' command in postin and
postun rpm scripts.

support-files/rpm/server-postin.sh

@@ -1,6 +1,10 @@
 
 # Make MySQL start/shutdown automatically when the machine does it.
 if [ $1 = 1 ] ; then
+  if [ -x /usr/bin/systemctl ] ; then
+          /usr/bin/systemctl daemon-reload >/dev/null 2>&1
+  fi
+
   if [ -x /sbin/chkconfig ] ; then
           /sbin/chkconfig --add mysql
   fi
@@ -51,9 +55,9 @@ fi
 SETARGETDIR=/etc/selinux/targeted/src/policy
 SEDOMPROG=$SETARGETDIR/domains/program
 SECONPROG=$SETARGETDIR/file_contexts/program
-if [ -f /etc/redhat-release ] \
+if [ -f /etc/redhat-release ] ; then 
-   && grep -q "Red Hat Enterprise Linux .. release 4" /etc/redhat-release \
+   if grep '\(Red Hat Enterprise Linux ..\|CentOS\) release 4' \
-   || grep -q "CentOS release 4" /etc/redhat-release ; then
+     /etc/redhat-release >/dev/null 2>&1; then
      echo
      echo
      echo 'Notes regarding SELinux on this platform:'
@@ -76,6 +80,7 @@ if [ -f /etc/redhat-release ] \
      echo
      echo
   fi
+fi
 
 if [ -x sbin/restorecon ] ; then
 	sbin/restorecon -R var/lib/mysql

support-files/rpm/server-postun.sh

@@ -6,3 +6,10 @@ if [ $1 -ge 1 ]; then
     fi
   fi
 fi
+
+if [ $1 = 0 ] ; then
+  if [ -x /usr/bin/systemctl ] ; then
+    /usr/bin/systemctl daemon-reload > /dev/null 2>&1
+  fi
+fi
+