It works. tks kwk.
remove rhn is not enough, i must follow the link with client side.



Quote Originally Posted by kwk View Post
When cloning SUSE Manager clients, you also clone the client activation details.

Remove the /etc/sysconfig/rhn directory and all its contents before re-registering a client.

See also http://wiki.novell.com/index.php/SUS...tstrapOnServer for completely un-registering a system.