采用NFS挂载根文件系统启动开发板出现：
1 nfs xxx is not responding,still trying 2 nfs xxx is OK 3 nfs xxx is not responding,still trying 4 ...............
1 setenv bootargs noinitrd console=ttySAC0,115200 init=/init root=/dev/nfs rw nfsroot=192.168.1.130:/home/ming/windowsshar/nfs/rootfs ip=192.168.1.58:192.168.1.130:192.168.1.1:255.255.255.0::eth0:off
1 setenv bootargs noinitrd console=ttySAC0,115200 init=/init root=/dev/nfs rw nfsroot=192.168.1.130:/home/ming/windowsshar/nfs/rootfs,proto=tcp,nfsvers=3,nolock ip=192.168.1.58:192.168.1.130:192.168.1.1:255.255.255.0::eth0:off
NFS挂载文件系统出现nfs is not responding,still trying
原文：http://www.cnblogs.com/ape-ming/p/5100470.html