diff --git a/xCAT/postscripts/remoteshell b/xCAT/postscripts/remoteshell
index 8177bee88..19250d036 100755
--- a/xCAT/postscripts/remoteshell
+++ b/xCAT/postscripts/remoteshell
@@ -281,9 +281,14 @@ if [ -f /etc/ssh/ssh_host_ecdsa_key ]; then
 	if ! grep "PRIVATE KEY" /etc/ssh/ssh_host_ecdsa_key > /dev/null 2>&1 ; then
    		rm /etc/ssh/ssh_host_ecdsa_key
 	else
-		ssh-keygen -y -f /etc/ssh/ssh_host_ecdsa_key > /etc/ssh/ssh_host_ecdsa_key.pub
-		chmod 644 /etc/ssh/ssh_host_ecdsa_key.pub
-		chown root /etc/ssh/ssh_host_ecdsa_key.pub
+		ssh-keygen -t ecdsa -y -f /etc/ssh/ssh_host_ecdsa_key -P ""
+		if [ "x$?" = "x0" ]; then
+			ssh-keygen -y -f /etc/ssh/ssh_host_ecdsa_key > /etc/ssh/ssh_host_ecdsa_key.pub
+			chmod 644 /etc/ssh/ssh_host_ecdsa_key.pub
+			chown root /etc/ssh/ssh_host_ecdsa_key.pub
+		else
+			rm -fr /etc/ssh/ssh_host_ecdsa_key
+		fi
 	fi
   else
 	#This is an error message