This repository provides examples used when I give Yocto presentations and Yocto training. It uses core-image-sato / core-image-minimal for a virtual x86-64 and ARM64 qemu machine to be able to test and show the results.

Before trying to use this, please see Yocto project quick build for setting up a native Linux host for building the image.

Below guide expect that your host machine is setup for Yocto build.

This repo is provided as is, for helping others with Yocto training / presentations. All of the recipes in this git repo is released under MIT.

1. Clone this repo.

$ git clone --recurse-submodules https://github.com/frosteyes/yocto-training.git

2. Setup yocto.

Source the setup script. Optional select a build folder. If no build folder is selected a standard folder named build is created. Select target x86-64 setup_qemux86-64 or setup_qemuarm64:

$ cd yocto-training
$ source setup_qemuarm64 build_arm64

After you have sourced the setup, please look into the conf/local.conf file. Specifically the variables DL_DIR and SSTATE_DIR is relevant to save downloads for later, and prebuild in sstate cache.

3. Build image.

Run bitbake - here we just selet the basic image:

$ bitbake core-image-sato

First time it takes significant time, as it need to download all the source code, compile the host tools and next the complete linux image.

4. Run the image in QEMU.

When the build is done, it is just to run qemu:

$ runqemu