diff --git a/xCAT/postscripts/config_chef_server b/xCAT/postscripts/config_chef_server
index 0d05713c7..e0cab6603 100755
--- a/xCAT/postscripts/config_chef_server
+++ b/xCAT/postscripts/config_chef_server
@@ -1,4 +1,4 @@
-#!/bin/sh -vx 
+#!/bin/sh  
 # IBM(c) 2013 EPL license http://www.eclipse.org/legal/epl-v10.html
 
 
diff --git a/xCAT/postscripts/config_chef_workstation b/xCAT/postscripts/config_chef_workstation
index 59ddd4eaf..2763fec7c 100755
--- a/xCAT/postscripts/config_chef_workstation
+++ b/xCAT/postscripts/config_chef_workstation
@@ -101,5 +101,5 @@ then
     echo $errmsg
     exit 1
 fi
-knife cookbook list
+
 exit 0
diff --git a/xCAT/postscripts/install_chef_client b/xCAT/postscripts/install_chef_client
index a4c15f3c6..337ff90fd 100755
--- a/xCAT/postscripts/install_chef_client
+++ b/xCAT/postscripts/install_chef_client
@@ -1,4 +1,4 @@
-#!/bin/sh -vx
+#!/bin/sh 
 # IBM(c) 2013 EPL license http://www.eclipse.org/legal/epl-v10.html
 #####################################################
 #=head1  install_chef_client
diff --git a/xCAT/postscripts/install_chef_server b/xCAT/postscripts/install_chef_server
index 7c1ae9393..295400b0c 100755
--- a/xCAT/postscripts/install_chef_server
+++ b/xCAT/postscripts/install_chef_server
@@ -1,4 +1,4 @@
-#!/bin/sh -vx
+#!/bin/sh
 # IBM(c) 2013 EPL license http://www.eclipse.org/legal/epl-v10.html
 #####################################################
 #=head1  install_chef_server
diff --git a/xCAT/postscripts/install_chef_workstation b/xCAT/postscripts/install_chef_workstation
index c08d44182..08691840d 100755
--- a/xCAT/postscripts/install_chef_workstation
+++ b/xCAT/postscripts/install_chef_workstation
@@ -1,4 +1,4 @@
-#!/bin/sh -vx
+#!/bin/sh
 # IBM(c) 2013 EPL license http://www.eclipse.org/legal/epl-v10.html
 #####################################################
 #=head1  install_chef_client