reproduce (this is a W=1 build): # https://github.com/frank-w/BPI-R2-4.14/commit/ce8c582c6121469db64197b1b4aa4e4c377c660f git remote add frank-w-bpi-r2-4.14 https://github.com/frank-w/BPI-R2-4.14 git fetch --no-tags frank-w-bpi-r2-4.14 pr/50 git checkout ce8c582c6121469db64197b1b4aa4e4c377c660f # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=um olddefconfig make W=1 O=build_dir ARCH=um SHELL=/bin/bash