http://wiki.openwrt.org/doc/howtobuild/wireless-router-with-a-3g-dongle Building image with support for 3g/4g and usb tethering Preparing build environment First of all, you need a complete build environment, either physical or virtual system, as d
root@Jack:/tmp/opkg-lists# opkg--help opkg:unrecognized option `--help' opkgmust have one sub-command argument usage:opkg [options...] sub-command [arguments...] wheresub-command is one of: PackageManipulation: update 升级 Update list ofavailable packa