diff --git a/xCAT-server/share/xcat/install/scripts/post.xcat.ng b/xCAT-server/share/xcat/install/scripts/post.xcat.ng
index 7b9e7a8eb..6a63a55f0 100644
--- a/xCAT-server/share/xcat/install/scripts/post.xcat.ng
+++ b/xCAT-server/share/xcat/install/scripts/post.xcat.ng
@@ -63,7 +63,7 @@ sleep "$RAND"
 if ! type openssl >/dev/null 2>&1
 then
     msgutil_r "$MASTER_IP" "error" "/usr/bin/openssl does not exist, halt ..." "/var/log/xcat/xcat.log" "$log_label"
-    /tmp/updateflag "$MASTER" "$XCATIPORT" "installstatus failed"
+    /tmp/updateflag "$MASTER_IP" "$XCATIPORT" "installstatus failed"
     sleep infinity
 fi
 
@@ -107,7 +107,7 @@ msgutil_r "$MASTER_IP" "info" "trying to download postscripts from $MASTER_IP...
 if ! type curl >/dev/null 2>&1
 then
     msgutil_r "$MASTER_IP" "error" "Command curl not found, halt ..." "/var/log/xcat/xcat.log" "$log_label"
-    /tmp/updateflag "$MASTER" "$XCATIPORT" "installstatus failed"
+    /tmp/updateflag "$MASTER_IP" "$XCATIPORT" "installstatus failed"
     sleep infinity
 fi
 
@@ -143,7 +143,7 @@ download_recursive "http://$MASTER_IP:${HTTPPORT}$INSTALLDIR/postscripts/" "/xca
 if [ "$?" -ne "0" ]
 then
     msgutil_r "$MASTER_IP" "error" "failed to download postscripts from http://$MASTER_IP$INSTALLDIR/postscripts/, check /tmp/download.log on the node,  halt ..." "/var/log/xcat/xcat.log" "$log_label"
-    /tmp/updateflag "$MASTER" "$XCATIPORT" "installstatus failed"
+    /tmp/updateflag "$MASTER_IP" "$XCATIPORT" "installstatus failed"
     sleep infinity
 fi
 
@@ -189,7 +189,7 @@ if [ ! -x /xcatpost/mypostscript ]; then
     # Stop if no getpostscript.awk to help the next bit
     if [ ! -x /xcatpost/getpostscript.awk ]; then
         msgutil_r "$MASTER_IP" "error" "/xcatpost/getpostscript.awk does not exist, halt ..." "/var/log/xcat/xcat.log" "$log_label"
-        /tmp/updateflag "$MASTER" "$XCATIPORT" "installstatus failed"
+        /tmp/updateflag "$MASTER_IP" "$XCATIPORT" "installstatus failed"
         sleep infinity
     fi
     /xcatpost/getpostscript.awk | egrep '<data>' | sed -e 's/<[^>]*>//g' | egrep -v '^ *$' | sed -e 's/^ *//' | sed -e 's/&lt;/</g' -e 's/&gt;/>/g' -e 's/&amp;/\&/g' -e 's/&quot;/"/g' -e "s/&apos;/'/g" >/xcatpost/mypostscript
@@ -301,7 +301,7 @@ esac
 chmod 0755 /xcatpost/mypostscript
 if [ ! -x /xcatpost/mypostscript ]; then
     msgutil_r "$MASTER_IP" "error" "failed to generate mypostscript file, halt ..." "/var/log/xcat/xcat.log" "$log_label"
-    /tmp/updateflag "$MASTER" "$XCATIPORT" "installstatus failed"
+    /tmp/updateflag "$MASTER_IP" "$XCATIPORT" "installstatus failed"
     sleep infinity
 else
     case "$XCATDEBUGMODE" in
@@ -454,7 +454,7 @@ esac
 
 msgutil_r "$MASTER_IP" "info" "finished firstboot preparation, sending request to $MASTER:3002 for changing status..." "/var/log/xcat/xcat.log" "$log_label"
 # The following command should always be run to prevent infinite installation loops
-updateflag.awk "$MASTER" 3002
+updateflag.awk "$MASTER_IP" 3002
 
 cd /