diff --git a/xCAT-server/share/xcat/install/scripts/post.rh b/xCAT-server/share/xcat/install/scripts/post.rh
index 39764b64e..adb137a64 100644
--- a/xCAT-server/share/xcat/install/scripts/post.rh
+++ b/xCAT-server/share/xcat/install/scripts/post.rh
@@ -62,6 +62,11 @@ BEGIN {
 	while(1) {
 		if((ns |& getline) > 0)
 			print \$0
+        else {
+            print "Retrying update"
+            close(ns)
+            system("sleep 5")
+        }
 
 		if(\$0 == "ready")
 			print "next" |& ns
diff --git a/xCAT-server/share/xcat/postscripts/updateflag.awk b/xCAT-server/share/xcat/postscripts/updateflag.awk
index 6d6930934..84135042e 100755
--- a/xCAT-server/share/xcat/postscripts/updateflag.awk
+++ b/xCAT-server/share/xcat/postscripts/updateflag.awk
@@ -11,6 +11,11 @@ BEGIN {
 	while(1) {
 		if((ns |& getline) > 0)
 			print $0 | "logger -t xcat"
+        else {
+            print "Retrying flag update" | "logger -t xcat"
+            close(ns)
+            system("sleep 10")
+        }
 
 		if($0 == "ready")
 			print "next" |& ns
diff --git a/xCAT/postscripts/locktftpdir.awk b/xCAT/postscripts/locktftpdir.awk
index 7d22b6e56..6faa040bb 100755
--- a/xCAT/postscripts/locktftpdir.awk
+++ b/xCAT/postscripts/locktftpdir.awk
@@ -8,6 +8,11 @@ BEGIN {
 	 while(1) {
                 if((ns |& getline) > 0)
                         print $0 | "logger -t xcat"
+                else { #socket dead, retry
+                    print "TFTP lockdir request retrying" | "logger -t xcat"
+                    close(ns)
+                    system("sleep 1")
+                }
 
                 if($0 == "ready")
                         print "locktftpdir" |& ns
diff --git a/xCAT/postscripts/setiscsiparms.awk b/xCAT/postscripts/setiscsiparms.awk
index d0eed95ba..7e0204d76 100755
--- a/xCAT/postscripts/setiscsiparms.awk
+++ b/xCAT/postscripts/setiscsiparms.awk
@@ -10,6 +10,11 @@ BEGIN {
 	while(1) {
                 if((ns |& getline) > 0)
                         print $0 | "logger -t xcat"
+                else {
+                    print "Retrying iSCSI paramater config script"
+                    close(ns)
+                    system("sleep 1")
+                }
 
                 if($0 == "ready")
                         print "setiscsiparms "kernel" "initrd" "kcmd |& ns
diff --git a/xCAT/postscripts/unlocktftpdir.awk b/xCAT/postscripts/unlocktftpdir.awk
index dfe7ae0b9..2f6945257 100755
--- a/xCAT/postscripts/unlocktftpdir.awk
+++ b/xCAT/postscripts/unlocktftpdir.awk
@@ -8,6 +8,11 @@ BEGIN {
 	 while(1) {
                 if((ns |& getline) > 0)
                         print $0 | "logger -t xcat"
+                else {
+                    print "Retrying unlock of tftp directory"
+                    close(ns)
+                    system("sleep 5")
+                }
 
                 if($0 == "ready")
                         print "unlocktftpdir" |& ns
diff --git a/xCAT/postscripts/updateflag.awk b/xCAT/postscripts/updateflag.awk
index 91599dee2..0eeb343b4 100755
--- a/xCAT/postscripts/updateflag.awk
+++ b/xCAT/postscripts/updateflag.awk
@@ -13,6 +13,11 @@ BEGIN {
 	while(1) {
 		if((ns |& getline) > 0)
 			print $0 | "logger -t xcat"
+        else {
+            print "Retrying flag update" | "logger -t xcat"
+            close(ns)
+            system("sleep 10")
+        }
 
 		if($0 == "ready")
 			print flag |& ns