Simple RootFS

RootFileSystem for Surface RT

Build root filesystem

Download Buildroot from https://buildroot.org/download.html unpack it open directory in terminal type: make menuconfig -> Target options -> configure for ARM. (see picture)

There are maybe better choices but it works at the moment. Type: make wait for 15-20 minutes. A lot of stuff is downloaded and compiled. When finished you will find ./output/images/rootfs.tar

target packages: libraries -> hardware handling -> libgpiod[*] -> install tools[*]