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)

Using supported package formats

From a Yocto Project perspective, a recipe may generate one or more output packages. A package wraps a set of files and metadata in a way that makes them available in the future. They can be installed into one or more images or deployed for later use.

Packages are critical to Poky, as they enable the build system to produce diverse types of artifacts, such as images and toolchains.

List of supported package formats

Currently, BitBake supports four different package formats:

  • Red Hat Package Manager (RPM): Originally named Red Hat Package Manager but now known as the RPM package format since its adoption by several other Linux distributions, this is a popular format in use in Linux distributions such as SuSE, OpenSuSE, Red Hat, Fedora, and CentOS.
  • Debian Package Manager (DEB): This is a widespread format used in Debian and several other Debian-based distributions – Ubuntu Linux and Linux Mint are the most widely known.
  • Itsy...