hi Kinglong: Thank you for your answer about this phenomenon, i just try the method you provide, but problem also exist. If i want to change the code about nfsd and rpc.mountd, where should i change? I'm not familiar with this part of the code. Thanks very much~ houlinfei?韬{.n?壏煯壄?%娝?檩?w?{.n?壏{炳w忐)韰骅w*jg?秹殠娸?G珴?⒏⒎:+v墾妛鑚豰稛??畐娻"穐殢鉂?嗁?