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Duration 14 hours (2 days)
Course Outline
Yocto Project Foundations for OpenBMC
- Fundamentals of the Yocto Project and the OpenEmbedded ecosystem.
- OpenBMC-dedicated layers: meta-phosphor, meta-aspeed, and meta-arm.
- Managing layer priorities and inter-layer dependencies.
- Integration of poky, oe-core, and OpenBMC distribution policies.
BitBake Deep Dive
- Understanding recipe syntax and structural elements.
- Managing tasks, dependencies, and variable flags.
- Leveraging inheritance and bbclass files.
- Debugging recipe issues using devtool.
Machine and BSP Layers
- Defining new machine configurations.
- Integrating device trees for ARM-based BMC SoCs.
- Customizing kernel recipes to meet specific needs.
- Configuring U-Boot for robust BMC boot processes.
Customizing Images
- Working with image recipes and FEATURE flags.
- Selectively adding or removing software packages.
- Defining partition layouts and managing flash sizes.
- Implementing initramfs and integrating with systemd.
Package Management
- Authoring recipes for custom C++ sdbusplus services.
- Packaging Python applications efficiently.
- Deploying systemd unit files correctly.
- Ensuring license compliance and managing COPYING files.
Build Optimization
- Configuring the shared state cache (sstate) for efficiency.
- Utilizing pre-mirrors and local download strategies.
- Tuning parallel build processes.
- Managing build host resources effectively.
SDK and Cross-Compilation
- Generating the OpenBMC Software Development Kit (SDK).
- Cross-compiling applications independent of bitbake.
- Applying the devtool add and modify workflow.
- Validating binaries on target hardware.
Layer Maintenance and Upgrades
- Keeping layer dependencies current.
- Managing transitions across upstream Yocto releases.
- Applying backports for patches and security fixes.
- Implementing version pinning strategies.
Requirements
- Proficiency with Linux command-line interfaces and shell scripting.
- Fundamental knowledge of embedded Linux build environments.
- Comfort with Git and standard Git workflows.
Target Audience
- Embedded Linux developers.
- Practitioners specializing in Yocto and OpenEmbedded.
- Firmware engineers moving into OpenBMC development.
Testimonials (2)
Very informative and the trainers kept it fun.
Mohd Shahroni Hj Timbang - ITPSS Sdn Bhd
Course - Ubuntu Server Administration and Centralized Identity Management
experienced trainer