Fix postinstall start

postinstall.sh

@@ -29,7 +29,7 @@ then
     do
         echo "Running post install for $ctn"
         scp postinstall_$ctn.sh $ctn:.
-        ssh $ctn postinstall_$ctn.sh
+        ssh $ctn ./postinstall_$ctn.sh
         ssh $ctn rm postinstall_$ctn.sh
     done
 else