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Introduction

This manual describes  Yocto 3.1 build procedure for Raspberry Pi Reference Platform. This will upgrade the default build system used in RDK Video, from morty(2.2) to dunfell(3.1). In addition to upgrades to opensource packages, Yocto 3.1 also contain Long term Support release feature. The current version lacks the variety of features available in the dunfell. The upgraded build tools will be used to generate different images for the target. 

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Each component in RDK is a standalone repository with its own individual build tools producing a library or set of binaries. When we upgrade the OE layers to the newer versions, we need to make necessary changes in the RDK layers which use these components, to avoid build failures.

Host Setup

The OpenEmbedded build system should be able to run on Ubuntu 18.04 distribution/other compatible linux distribution with the following versions for Git, tar, and Python.

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$ sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib \
  build-essential chrpath socat cpio python python3 python3-pip python3-pexpect \
  xz-utils debianutils iputils-ping python3-git python3-jinja2 libegl1-mesa libsdl1.2-dev \
  pylint3 xterm bmap-tools

Repo Setup

In order to use Yocto build system, the repo tool must be properly installed on the machine.

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machine code.rdkcentral.com
login YOUR_USERNAME
password YOUR_PASSWORD

Executing System

To tackle the build issues from moving one version to another, we have decided to split the problem into different subtasks. So instead of building a complete image at one go, we have planned for the generation of following images:

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Currently, all the changes are being pushed in these branches. Once it is merged, you will be able to follow the build instructions without any error.

Yocto Build Steps 

• rdk-generic-mediaclient-image
• rdk-generic-hybrid-image

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