Hello , My hos OS is Red Hat Enterprise Linux 4.0,Kernal in ep9302 board is linux 2.4,which support for nfs client. I have loaded the kernal2.4 from tftp server and mount ramdisk from nfs server. In RHEL4 OS ,I can use "mount command" to mount nfs dir successly,But fail in ep9302 board. And This is the error as follow: mount: RPC: Timed ounfs warning: mount version older than kernel mount: nfNFS: mount program didn't pass remote address! mount failed: Bad file descriptor mount: Mounting -t nfs -o nolock 192.168.118.159:/work/ep9302/nfs on /mnt/nfs failed: Invalid argument in the internet,some suggest using -o vers=2 / 3 ,I try that mount -t nfs -o nlock,vers=2 192.168.118.159:/work/ep9302/nfs /mnt/nfs and mount -t nfs -o nlock,vers=3 192.168.118.159:/work/ep9302/nfs /mnt/nfs ,but the result is the same. In the past,I also use Red Hat Enterprise Linux 4.0 as my host OS,there is no error when using nfs with mount.I am so sad! Help me please! Thank you very much! ——do2jiang 2009-5-14