| oY1 | Yocto Project Development |
Building a Linux Embedded image using Yocto
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Objectives
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- Good C programming skills
- Knowledge of Linux Embedded systems (see our oD1 - Embedded Linux course)
- Preferably knowledge of Linux user programming (see our oD0 - Linux User Mode Programming course)
- You may be interested also by the Yocto Expert course or the combined (oY12 - Comprehensive Yocto Project Usage course)
- Theoretical course
- PDF course material (in English).
- Course dispensed using the Teams video-conferencing system.
- The trainer answers trainees' questions during the training and provide technical and pedagogical assistance through the Teams video-conferencing system.
- Practical activities
- Practical activities represent from 40% to 50% of course duration.
- Code examples, exercises and solutions
- One Online Linux PC per trainee for the practical activities.
- The trainer has access to trainees' Online PCs for technical and pedagogical assistance.
- Eclipse environment and GCC compiler.
- QEMU Emulated board or physical board connected to the online PC (depending on the course).
- Some Labs may be completed between sessions and are checked by the trainer on the next session.
- Downloadable preconfigured virtual machine for post-course practical activities
- At the start of each session the trainer will interact with the trainees to ensure the course fits their expectations and correct if needed
- Total: 18 hours
- 3 sessions, 6 hours +/-30 min each (excluding break time)
- From 40% to 50% of training time is devoted to practical activities
- Some Labs may be completed between sessions and are checked by the trainer on the next session
- Any embedded systems engineer or technician with the above prerequisites.
- The prerequisites indicated above are assessed before the training by the technical supervision of the traineein his company, or by the trainee himself in the exceptional case of an individual trainee.
- Trainee progress is assessed in two different ways, depending on the course:
- For courses lending themselves to practical exercises, the results of the exercises are checked by the trainer while, if necessary, helping trainees to carry them out by providing additional details.
- Quizzes are offered at the end of sections that do not include practical exercises to verifythat the trainees have assimilated the points presented
- At the end of the training, each trainee receives a certificate attesting that they have successfully completed the course.
- In the event of a problem, discovered during the course, due to a lack of prerequisites by the trainee a different or additional training is offered to them, generally to reinforce their prerequisites,in agreement with their company manager if applicable.
Course Outline
- Overview of Yocto
- History
- Yocto, Open Embedded and Poky
- Purpose of the Yocto project
- The main projects
- Yocto architecture
- Overview
- Recipes and classes
- Tasks
- Build system objectives
- Building deployable images
- Layers and layer priorities
- Directory layout
- Configuration files (local, machine and distribution)
- The bitbake tool
- Using Yocto
- Building a package
- Building an image (root file system + u-boot + kernel)
- Miscellaneous tools around Yocto
- Yocto SDK
- Extensible SDK
| Exercise: | Building a root file system using Yocto | |
| Exercise: | Use bitbake commands to build package & images | |
| Exercise: | Building a root file system using Yocto | |
| Exercise: | Build an extensible SDK for the generated image | |
| Exercise: | Deploy the generated image | |
- Recipe architecture
- Tasks
- Task dependencies
- Recipe dependencies
- The bitbake language
- Standard variables and functions
- Classes and recipes
- The base Yocto classes
- Main bitbake commands
- Adding a new layer
- Layer structure
- Various kinds of layers
| Exercise: | Adding a new layer | |
- Various kind of recipes and classes
- Bare program
- Makefile-based package
- autotools-based package
- u-boot
- kernel
- Out-of-tree module
- Recipe creation strategies
- From scratch
- Using devtool
- Using recipetool
- From an existing, similar, recipe
- Debugging recipes
- Debugging recipe selection
- Debugging dependencies
- Debugging tasks
- Defining packaging
- Package splitting
- Automatically starting a program
| Exercise: | Writing a recipe for a local user-maintained package | |
| Exercise: | Writing and debugging a package recipe for an autotools-based package | |
| Exercise: | Starting a program at boot (systemd) | |
- Customizing an existing package recipe (.bbappend)
- Recipe dependencies
- Creating and adding patches
- Creating a patch for a community-provided component
- Creating a patch for an user-maintained component
- Defining new tasks
- Task declaration
- Coding tasks
| Exercise: | Adding patches and dependencies to a community package | |
| Exercise: | Adding a rootfsinstall task to directly copy the output of a user package in the rootfs image | |
- Creating classes
- Creating new independent classes
- Inheriting from an existing class
| Exercise: | Create a class to generalize the “rootfsinstall” task | |
- Building a root file system with Yocto
- Creating a custom root file system
- Writing an image recipe
- Selecting the packages to build
- Selecting the file system types
- The various kinds of images
- Inheriting and customizing images
- Customizing system configuration files (network, mount points, …)
- Users and groups management
- Package management
- rpm
- opkg
| Exercise: | Writing and building an image recipe | |
| Exercise: | Add new users to the image | |
| Exercise: | Create an image with package support for OTA deployment | |
| Exercise: | Test OTA update on the generated image | |
Duration
18 hours
Cost
2400 € HT
Calendar
To book a training session or for more information, please contact us on info@ac6-training.com.
Registrations are accepted till one week before the start date for scheduled classes. For late registrations, please consult us.
You can also fill and send us the
registration form
This course was designed specifically to be provided online, by one of our skilled trainers.
Scheduled classes are confirmed as soon as there is two confirmed bookings. Bookings are accepted until 2 working days before the course start.
Last update of course schedule: 2 February 2022
Booking one of our trainings is subject to our
General Terms of Sales
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