The manifest provides the new possibility to build the binary image with
buildroot and br-external.
The source code can be downloaded with git-repo repo script. After that,
the code could be compiled with the commands:
$ source build/envsetup.sh
$ lunch r6300v2
$ makeThe generated binary file will be found at the directory out/images
with the extension chk, which can be flashed with router web update
page.