diff --git a/xCAT-server/sbin/xcatconfig b/xCAT-server/sbin/xcatconfig
index e63200dbf..eec1c7846 100755
--- a/xCAT-server/sbin/xcatconfig
+++ b/xCAT-server/sbin/xcatconfig
@@ -284,10 +284,9 @@ if ($::INITIALINSTALL || $::FORCE || $::UPDATEINSTALL)
         system($mkssys_cmd);
         use strict;
 
-		#
+           # if not Update,  add to inittab, breaks HAMS to add
+            if (! $::UPDATEINSTALL) {
 		# for AIX systems add xcatd to the /etc/inittab file
-		#
-
 		# add xcatd entry if one does not exist
 		my $rcmd = "/bin/cat /etc/inittab | grep 'xcatd'";
 		my $outref = xCAT::Utils->runcmd("$rcmd", -1);
@@ -299,6 +298,7 @@ if ($::INITIALINSTALL || $::FORCE || $::UPDATEINSTALL)
                     xCAT::MsgUtils->message('E', "Could not set up inittab.");
 		   }
 		}
+	     }
 
         # add AIX needed exports
         &setupAIXexports;