trainingamarula

Amarula Solutions will be at LinuxLab 2018 with two speakers. The participants will have the chance to meet our team and have conversion with our CTO Alberto Panizzo. We are going to present our experience on Embedded Linux software update using swupdate  and buildroot project and a full introduction of the u-boot secret.

u-boot

U-Boot project has evolved in the time span of over 17 years and so as its complexity and its uses. This has made it a daunting task in getting started with its development and uses. This talk will address all these issues start with overview, features, efforts created by community and future plans. The U-Boot project has evolved in the time span of over 17 years and so as its complexity and its uses. This has made it a daunting task in getting started with its development and uses. This talk will address all these issues and share development efforts created by the U-Boot community. In this talk Jagan Teki(Maintainer for Allwinner SoC, SPI, SPI FLASH Subsystems) will introduce U-Boot from scratch with a brief overview of U-Boot history, U-Boot Proper, SPL, TPL, Build process and Startup sequence. He will talk about other preliminaries such as Image booting, Falcon Mode, Secure Boot and U-Boot features like device tree, device overlays, driver model and DFU, etc. Once giving enough introduction, he will also talk about steps to port U-Boot to new hardware with a demo, along with U-Boot testing process. Finally, he will address and review ongoing development work, issues and future development regarding U-Boot.

Buildroot & swupdate

This talk will guide you through the perils of building a resilient software stack for embedded system using buildroot as a base, stuff your software in between and adding swupdate as cherry on top! The talk will be composed by three main areas:

  • How to use buildroot as a base system for your stack
  • An introduction to swupdate and it’s fields of use
  • An example of using buildroot and  swupdate to update your stack.

In the first we will talk about using buildroot as base for your software and how to add your software around. Buildroot make really easy to build a complete firmware image when using the standard configurations provided by the software but it could be cumbersome if you want to add your software in simple, easy and automated way. So we will show you how to write a simple makefile to add your software as an external component and how to automate the process of compiling everything to produce your binary artifacts. The second part will discuss about swupdate and it’s field of use. Swupdate provides several ways of use: it can be used in a simple way, it could be integrated to do A/B updates, it could be used via network or locally using a medium. We will discuss about the possibility of approaches of system updates and how swupdate can satisfy each one of the use cases. The third phase will show you a real approach adopted to solve a specific use case with the hope it can be used a reference for auditor specific needs.