Artikel von Enrico Jörns
Signed FIT Image Support for meta-oe (fitimage.bbclass)
FIT images provide a versatile way to bundle components used to boot embedded Linux systems, like the kernel, device tree, ramdisk, firmware, etc. They also support cryptographic signatures, making them ideal for verified boot setups. This blog post introduces the new fitimage.bbclass in meta-oe as an alternative to oe-core's kernel-fitimage.bbclass, with a clear focus on enhancing both versatility and signing support.
Bringing Barebox into OE-Core (Yocto)
This blog post chronicles the multi-year journey to get Barebox accepted into OE-Core—from the early attempts to the eventual success in October 2024. Along the way, we’ll explore the technical hurdles we faced, the community discussions that shaped the process, and the improvements we added to both OE and Barebox.
RAUC v1.12 Released
With 93 pull requests that brought in 248 new commits, a lot happened since the last release on master (v1.11.1). The new v1.12 version of RAUC focusses on making it even more robust while adding some features and improvements.
Pengutronix: Rückblick auf 2023 - Teil III
Im dritten und letzten Teil unserer Rückblicks-Reihe blicken wir auf unserer Schwester-Firma Linux Automation GmbH, die neben einem Umzug in neue Räumlichkeiten, das Jahr genutzt hat um vor allem den lang erwarteten LXA TAC (Test Automation Controller) allen Widrigkeiten zum Trotz der Marktreife näher zu bringen. Die Kollegen geben hierzu, wie auch zu aktuellen Weiterentwicklungen bestehender Produkte einen kurzen Rück- und Einblick.
Pengutronix: Rückblick auf 2023 - Teil II
Im zweiten Teil unseres Rückblicks widmen wir uns unter anderem den Arbeiten unseres Grafik- und Multimedia-Teams, das wieder über den gesamten Linux-Stack, vom Kernel über mesa bis hin zu Pipwire, Weston und Webkit eine ganze Reihe an Bugfixes, Erweiterungen und Anpassungen untergebracht hat, um die Anforderungen aus verschiedensten Kunden-Projekten abzudecken.
Pengutronix: Rückblick auf 2023 - Teil I
Wieder ist ein spannendes aber auch herausforderndes Jahr vorüber, wir sind ein Jahr näher am Y2038-Problem, OpenSSL 1.1.1 ist endgültig Geschichte, Kernel v4.14 von 2017 wird in vier Wochen endlich abgekündigt, kommende LTS-Kernel nur noch 2 Jahre unterstützt. Die Relevanz von Linux, nicht nur im Embedded-Segment, steigt ungemein, gleichzeitig steht die (Open Source) Software-Welt in Europa vor notwendigen aber auch herausfordernden Umbrüchen, die in Form des Cyber Resilience Acts ihre Schatten voraus werfen.
RAUC v1.11 Released
Ho Ho ho! As the year's progress bar approaches 99%, another update is already completed: RAUC v1.11 is here!
RAUC v1.10 Released
Just in time for the EOSS 2023 in Prague, we have released v1.10 of RAUC. Just-in-time means the release was actually finalized by Jan Lübbe in the train to Prague (like I finally wrote the majority of this blog post on the train back).
RAUC v1.9 Released
"Getting things off the ground" could be the motto for the v1.9 release of RAUC. The support for custom metadata in the manifest got a step further, a new, more flexible, D-Bus API for bundle inspection paved the way for obtaining more detailed information, and a new manifest hash marks the first of several planned changes for configurable event logging. However, one of the most invasive changes happened under the hood: We have started the transition from autotools to meson as a build system.
Rückblick auf 2022
Bei Pengutronix und in der Embedded-Linux-Welt im Allgemeinen passieren natürlich das ganze Jahr über spannende Dinge, aber so ein Übertrag im Datumsfeld ist schon eine großartige Gelegenheit sich mal zurück zu lehnen und davon zu erzählen.
Saving Download Bandwidth with RAUC Adaptive Updates
Based on RAUC's HTTP(S) streaming capabilities, adaptive updates are a generic concept in RAUC to allow saving download bandwidth and form an alternative to conventional delta updates. This post introduces both the generic concept as well the first implemented method 'block-hash-index'.
RAUC v1.8 Released
When September ends and summer is over, it's a good opportunity to take advantage of the shorter days and comfortably update to the latest RAUC version we have just released into the wild: v1.8
RAUC v1.7 Released
Better late than never: Finally, here is our blog post for RAUC v1.7, which was released a month ago.
Pengutronix at Embedded World 2022
Welcome to our booth at the Embedded World 2022 in Nürnberg!
Tutorial: Start With RAUC Bundle Encryption Using meta-rauc
In its current master branch, RAUC now supports encrypted Bundles. This tutorial will introduce you to the basics of using encryption in RAUC and show how to use it in a simplified Yocto setup with the meta-rauc Layer.
RAUC v1.6 Released
While major changes are about to come, the RAUC v1.6 release already paves the way under the hood. Built-in streaming support will be one of the next features built on top of the 'verity' bundle format in RAUC.
Tutorial: Evaluating RAUC on QEMU - A Quick Setup With Yocto
RAUC is an update framework for safely deploying verified updates on your embedded Linux devices. It ensures atomicity of the update process to protect from sudden power outages, hardware failures, etc. So, why would one like to run RAUC on an emulated platform?
rauc-hawkbit-updater v1.0 Released
Back in 2018, rauc-hawkbit-updater was started by Prevas A/S as a C/GLib port of our rauc-hawkbit Python prototype (also called RAUC hawkBit Client) that was mainly developed for showcases and to serve as a demonstration and evaluation platform for others.
Yocto Project Virtual Summit 2021
On Tuesday, 25th and Wednesday, 26th, the 3rd edition of the Yocto Project Virtual Summit took place on the internet. With a fair ticket price of 40$ Pengutronix developers Jan Lübbe and Enrico Jörns got a 2-day long wild ride through the latest features, workflows and experiences with the Yocto Project.
Showcase: Fail-Safe (OTA) Field Updating
Eingebettete Systeme und IoT-Geräte robust und sicher im Feld updaten zu können ist heute eine Kernanforderung jedes Produkts. Das Update-Framework RAUC ist die Basis für eine moderne und zukunftsfähige Lösung. In diesem Showcase zeigen wir die Grundprinzipien eines ausfallsicheren Update-Systems und wie Sie dieses mit Unterstützung von Pengutronix für Ihre Plattform realisieren können.
RAUC v1.5 Released
This release fixes a vulnerability in RAUC that can be exploited under certain circumstances to achieve a local privilege escalation. It provides both a mitigation for the vulnerability when using the existing bundle format as well as a new bundle format that uses dm-verity to continuously authenticate the update data while it is installed.
RAUC v1.4 Released
It's been 3 weeks ago now since the tag for RAUC 1.4 was created. But it is vacation time and so we have a good excuse for communicating things with some delay. Fortunately, the media team is back now and so also those of you who haven't noticed the new release yet will be informed about notable changes.
ELC-NA 2020 - A Virtual Experience
In 2020, things tend to be a bit different from what we had before. This is also true for this year's Embedded Linux Conference in North America. The need for keeping physical distance required the Linux Foundation to switch form a real conference to a fully virtual one.
RAUC v1.3 Released
Here it is, commit number 1700, 291 commits after the v1.2 tag: The v1.3 release of RAUC is out in the wild and adds a lot of new and useful features together with some fixes.
#FlattenTheCurve – Vorstellung unserer Remote-Infrastruktur
Die Corona-Krise hat uns alle, sowohl als Privatpersonen als auch als Firmen, plötzlich ziemlich hart getroffen und stellt unsere gesamte Gesellschaft vor neue Herausforderungen. Wir als Pengutronix möchten uns bei denjenigen bedanken, die in systemkritischen Berufen arbeiten und unsere alltägliche Versorgung sicherstellen.
Pengutronix at Embedded World 2020
Yesterday, Embedded World started, in normal times one of the largest trade shows for embedded development in Europe. While many exhibitors (and thus maybe also lots of visitors) have canceled their presence due to the coronavirus, we present our booth and our demo show cases as usual.
FOSDEM 2020 – Recommended Talks
FOSDEM is one of the biggest Open Source community meetings in Europe and takes place in Brussels at the Université Libre de Bruxelles every year in February. For Pengutronix this is always a good chance to meet developers, discuss current topics and enjoy some Belgian beer and food. This year we attended FOSDEM with 15 colleagues. Here are some talks our colleagues recommend you to see.
OpenEmbedded Workshop 2020
This year, co-located to the FOSDEM in Brussels, the first OpenEmbedded workshop was held. About 30 OpenEmbedded (and Yocto Project) enthusiasts - from the developers of the first hour to those still collecting their first experiences - got together at the DigitYser tech hub in Brussels. Pengutronix attended with their two developers most involved in OpenEmbedded: Jan Lübbe and Enrico Jörns.
RAUC v1.2 Released
Right before the ELC-E starts tomorrow, we used the time in the hotel to bake a brand new RAUC release for you (and your embedded devices)! Well, here it is: RAUC v1.2
Safe and Secure Field Updates of Embedded Linux Systems
In this blog post I would like to address the challenges of performing unattended and verified updates of embedded Linux systems in the field using open source software and workflows. While updating is not a end in itself, a second part of my considerations goes even further and also works out the necessities and possible workflows for keeping the software stack of a project up to date and thus either preventing security issues or at least enabling a short reaction time in case of severe CVE'S discovered.
RAUC v1.1 Released
Just before the beautiful shine of the new has fully disappeared from RAUC 1.0, it is now time to bring out a new release: v1.1.
A Logo for labgrid
It took us a while to find a good logo for one of our latest (but already quite-a-few-years-out) software projects, called labgrid. In case you have not heard of it yet, feel free to read our short blog post from 2017 or visit labgrid's GitHub page.
RAUC v1.0 Released
Four days before Christmas Pengutronix prepared a very special present that probably many of you have been waiting for: The 1.0 version of RAUC!
RAUC v0.4 Released
The RAUC team is proud to announce that we've just released RAUC v0.4!
Pengutronix auf der FOSDEM 2018
Wie auch in den vergangenen Jahren ist auch dieses Jahr wieder eine Horde Pengutronix-Entwickler zur alljährlichen Open-Source-Konferenz FOSDEM nach Brüssel gefahren, um sich dort über die aktuellen Entwicklungen in den Bereichen Embedded Linux, Graphik und Multimedia, Elektronik und anderen interessanten Bereichen zu informieren.
RAUC v0.3 Released
The RAUC team is proud to announce that we've just released RAUC v0.3! Again, we have worked a lot on stability and support for more and more use cases. RAUC now supports pure UEFI-based booting on x86, multiple board variants in the same bundle, intermediate certificates and enhanced feedback from the boot selection layer.
PTXdist.org: Departure into a new Age
Over the past months, we did a lot of work in giving some open source projects maintained by Pengutronix folks the attention they deserve while also being more open to the community and ease contributing to and using them.
Bridging the Gap: The RAUC hawkBit Client
OTA field updates are a common requirement in modern embedded device deployments. The larger the amount of devices to control, the more important is having a good infrastructure that is reliable in updating and smart in rolling out the software.
RAUC v0.2 Release
Eine neue Version des RAUC Update Frameworks steht bereit.
Umfassendes RAUC Dokumentations-Update
Wie in vielen Projekten, ist auch bei RAUC an vielen Stellen nach massiver Entwicklung meist nicht mehr ausreichend Zeit geblieben, die Änderungen, neuen Features und grundlegenden Konzepte angemessen aufbereitet in der Dokumentation unterzubringen und zu erklären.
Pengutronix wird Yocto Project Participant
Nicht zuletzt da das Yocto Projekt aus der Embedded-Welt schon seit längerem nicht mehr weg zu denken ist, setzt auch Pengutronix bereits seit einigen Jahren neben PTXdist in diversen Projekten auch OpenEmbedded erfolgreich als Distributions-Buildtool ein.