Yocto Project Basics
This guide covers Yocto Project fundamentals for building custom Linux distributions for embedded systems.
What is Yocto Project?
Yocto Project is a Linux Foundation collaborative project that provides tools and processes for creating custom Linux distributions for embedded systems.
Key Components
- BitBake: Build tool and task executor
- OpenEmbedded-Core: Metadata and recipes
- Poky: Reference distribution
- Recipes: Build instructions for packages
Getting Started
1. Install Dependencies
sudo apt install -y gawk wget git-core diffstat unzip texinfo gcc-multilib
sudo apt install -y build-essential chrpath socat cpio python3 python3-pip
sudo apt install -y python3-git python3-jinja2 libegl1-mesa libsdl1.2-dev
2. Set Up Environment
mkdir -p ~/yocto-workspace
cd ~/yocto-workspace
git clone -b kirkstone git://git.yoctoproject.org/poky.git
cd poky
source oe-init-build-env build-rock5b
3. Configure Build
# Edit local.conf
echo 'MACHINE = "rock5b"' >> conf/local.conf
echo 'DISTRO = "poky"' >> conf/local.conf
4. Build Image
bitbake core-image-minimal