In this chapter, we learned about the concept of metadata, how recipes depend on each other, and how Poky deals with dependencies. We got a better view of the tasks being managed by BitBake to download all the required source code and used it to build and generate packages, and saw how these packages fit into generated images.

In the next chapter, we will see the contents of the build directory after complete image generation and learn how BitBake uses it in the baking process, including the contents of the temporary build directory and its generated files.