Yocto environment for building raspberry pi images. 1) Install required dependencies for yocto to run bitbake https://www.yoctoproject.org/docs/1.8/yocto-project-qs/yocto-project-qs.html 2) Check out the code and initialize submodules 3) Run the init script to set u your workspace 4) create your first image with bitbake rpi-basic-image