在uboot里面把bootargs改成console= ttyS0,115200n8 noinitrd rw ip=192.168.0.53:192.168.0.123:192.168.0.1:255.255.255.0 root=/dev/nfs nfsroot=192.168.0.123:/opt/nfs/filesys,nolock mem=120M video=dm64xxfb:output=pal