fix(packaging): fixed issue with restart on upgrade in debian package, Fixes #2320

packaging/deb/control/postinst

@@ -5,14 +5,14 @@ set -e
 [ -f /etc/default/grafana-server ] && . /etc/default/grafana-server
 
 startGrafana() {
-    if [ -x /bin/systemctl ] ; then
-        /bin/systemctl daemon-reload
-        /bin/systemctl start grafana.service
-	elif [ -x "/etc/init.d/grafana" ]; then
+  if [ -x /bin/systemctl ]; then
+    /bin/systemctl daemon-reload
+    /bin/systemctl start grafana-server
+	elif [ -x "/etc/init.d/grafana-server" ]; then
 		if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
-			invoke-rc.d grafana start || true
+			invoke-rc.d grafana-server start || true
 		else
-			/etc/init.d/grafana start || true
+			/etc/init.d/grafana-server start || true
 		fi
 	fi
 }
@@ -56,9 +56,9 @@ case "$1" in
         if [ -x /bin/systemctl ] ; then
             echo "### NOT starting on installation, please execute the following statements to configure grafana to start automatically using systemd"
             echo " sudo /bin/systemctl daemon-reload"
-            echo " sudo /bin/systemctl enable grafana-server.service"
+            echo " sudo /bin/systemctl enable grafana-server"
             echo "### You can start grafana-server by executing"
-            echo " sudo /bin/systemctl start grafana-server.service"
+            echo " sudo /bin/systemctl start grafana-server"
 
         elif [ -x /usr/sbin/update-rc.d ] ; then
             echo "### NOT starting grafana-server by default on bootup, please execute"