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Course Outline
Foundations of the Yocto Project for OpenBMC
- Overview of the Yocto Project and OpenEmbedded
- OpenBMC-specific layers: meta-phosphor, meta-aspeed, meta-arm
- Understanding layer priorities and dependencies
- The role of poky, oe-core, and OpenBMC distribution policies
Deep Dive into BitBake
- Recipe syntax and structural components
- Tasks, dependencies, and variable flags
- Inheritance mechanisms and bbclass files
- Debugging recipes using devtool
Machine and BSP Layers
- Establishing a new machine configuration
- Integrating device trees for ARM BMC System on Chips (SoCs)
- Customizing kernel recipes
- Configuring U-Boot for BMC boot processes
Image Customization
- Understanding image recipes and FEATURES flags
- Adding and removing packages
- Managing partition layouts and flash memory sizes
- Integrating initramfs and systemd
Package Management
- Writing recipes for custom C++ sdbusplus services
- Packaging Python applications
- Deploying Systemd unit files
- Ensuring license compliance and managing COPYING files
Build Optimization
- Configuring the shared state cache (sstate)
- Leveraging pre-mirrors and local downloads
- Tuning parallel build processes
- Managing build host resources effectively
SDK and Cross-Compilation
- Generating the OpenBMC SDK
- Cross-compiling applications independently of bitbake
- Utilizing the devtool add/modify workflow
- Testing binaries on target hardware
Layer Maintenance and Upgrades
- Updating layer dependencies
- Handling upstream Yocto releases
- Backporting patches and security fixes
- Implementing version pinning strategies
Requirements
- Proficiency with Linux command line interfaces and shell scripting
- Foundational knowledge of embedded Linux build systems
- Working familiarity with Git and standard Git workflows
Audience
- Embedded Linux developers
- Yocto/OpenEmbedded practitioners
- Firmware engineers transitioning to the OpenBMC ecosystem
14 Hours
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