Book Image

Embedded Linux Development Using Yocto Project - Third Edition

By : Otavio Salvador, Daiane Angolini
Book Image

Embedded Linux Development Using Yocto Project - Third Edition

By: Otavio Salvador, Daiane Angolini

Overview of this book

The Yocto Project is the industry standard for developing dependable embedded Linux projects. It stands out from other frameworks by offering time-efficient development with enhanced reliability and robustness. With Embedded Linux Development Using Yocto Project, you’ll acquire an understanding of Yocto Project tools, helping you perform different Linux-based tasks. You’ll gain a deep understanding of Poky and BitBake, explore practical use cases for building a Linux subsystem project, employ Yocto Project tools available for embedded Linux, and uncover the secrets of SDK, recipe tool, and others. This new edition is aligned with the latest long-term support release of the aforementioned technologies and introduces two new chapters, covering optimal emulation in QEMU for faster product development and best practices. By the end of this book, you’ll be well-equipped to generate and run an image for real hardware boards. You’ll gain hands-on experience in building efficient Linux systems using the Yocto Project.
Table of Contents (20 chapters)

BeagleBone Black

In the next two sections, we go through the steps for baking and booting an image for the BeagleBone Black board.

Baking for BeagleBone Black

To use this board, we can rely on the meta-yocto-bsp layer, which is included by default in Poky. The meta layer can be accessed at

To create the source structure, please download Poky using the following command line:

git clone git:// -b kirkstone

After completing this, we must create the build directory we use for our builds. We can do this using the following command line:

source oe-init-build-env build

After we have the build directory and the BSP layers properly set up, we can start the build. Inside the build directory, we must call the following command:

MACHINE=beaglebone-yocto bitbake core-image-full-cmdline

The MACHINE variable can be changed depending on the board we want to use or set in build...