Yocto/GettingStarted

Getting Started

This page is supposed to give a simple to follow guide of the first steps one have to do to assemble a setup for embedded development, preparing a first build via Yocto, build it and test-run it on the development device.

Material Needed

Embedded development always have the problem that you need some material additional to a development computer.

The most important components that one always should have:

• development board
• power supply for the development board
• micro SD card as main storage of the development board
• a micro SD card writer/reader
• a RS232-USB adapter for low level debugging of startup problems of the development board

Preparation for Yocto Build

Here we do a few things:

1. Prepare a Docker container with the required Yocto dependencies, in which the Yocto build will happen.
2. Checkout a configuration of the KDE Demo image and set it up

Preparation of Docker Container and Yocto Configurations

The basic source code repository for this step is kde:packaging/yocto-manifest (https://invent.kde.org/packaging/yocto-manifest). Select a location where you have a lot (and this really means >200 GB) of free space. In the following, we assume that /opt/yocto is such a location; just replace it in the commands if it is different.

# get Yocto sources
export YOCTODIR=/opt/yocto
git clone kde:packaging/yocto-manifest manifest

# step: prepare docker container with name "yocto-kirkstone"
docker build ${YOCTODIR}/manifest/containers/kirkstone  -t yocto-kirkstone

# step: obtain Google's repo tool
curl https://storage.googleapis.com/git-repo-downloads/repo > ${YOCTODIR}/repo
chmod a+x ${YOCTODIR}/repo

# step: prepare Yocto folder structure; using Yocto release "mickledore"
mkdir ${YOCTODIR}/mickledore && cd ${YOCTODIR}/mickledore
${YOCTODIR}/repo init -u https://invent.kde.org/packaging/yocto-manifest.git -m mickledore.xml
${YOCTODIR}/repo sync