Summary

In this chapter, you learned how to use both Buildroot and the Yocto Project to configure, customize, and build embedded Linux images. We used Buildroot to create a BSP with a custom U-Boot patch and device tree specification for a hypothetical board based on the BeagleBone Black. We then learned how to add our own code to an image in the form of a Buildroot package. You were also introduced to the Yocto Project, which we will cover in depth in the next two chapters. In particular, you learned some basic BitBake terminology, how to write an image recipe, and how to create an SDK.

Don't forget that any devices you create using these tools will need to be maintained in the field for a period of time, often over many years. Both the Yocto Project and Buildroot provide point releases for about 1 year after the initial release, and the Yocto Project now offers long term support for at least 2 years. In either case, you will find yourself having to maintain your release yourself...