u-boot 中 boot 后出现Unable to get nfsd port number from sever,using default是咋回事?
setenv linux_arg root=/dev/nfs nfsroot=192.168.253.1:/armsys2440/root ip=192.168.253.9:192.168.253.1:192.168.253.1:255.255.255.0:armsys.hzlitai.com:eth0:off console=ttySAC0,115200 display=L35T32