[ -n "$routername" -a ${#routername} == 6 -a -z "$(uci -q get system.@system[0].routername)" ] && uci set "system"."@system[0]"."routername"=$routername
version=$(cat /etc/version)
[ -n "$version" ] && uci set "system"."@system[0]"."device_fw_version"=$version