Tag: openembedded
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Yocto security: Kernel Hardening
This is another blog post about securing your Yocto built systems: Introduction The Linux kernel is the cornerstone and stronghold of a Linux based system. Unlike user-space applications which run with limited privileges, if it’s compromised, there is almost no limit to what an attacker can do. While nothing is unbreakable, there are two types…
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Yocto bookmark and new training dates
Bookmark After a brief announcement two weeks ago, here is the new Yocto command reference bookmark, in a format you can print and modify, according to the terms of the Creative Commons Attribution-ShareAlike license. In particular, the PDF version is ready to be printed. This way you will get 5 bookmarks on double-sided A4 paper.…
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Yocto: variable overrides tricks
I discovered a intriguing phenomenon while preparing my How to test the latest mainline Linux kernel or bootloader presentation at OpenEmbedded Workshop 2025. It turned out there was something incomplete in my understanding of BitBake variable overrides. Let’s take the example of a meta-mainline recipe from my Kernel Recipes: SRC_URI = “git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git;branch=linux-6.13.y;protocol=https” Then, depending on…
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Introducing Yocto Project Overview Seminars
Following discussions with a customer, and as a teaser for our Yocto Project and OpenEmbedded course, we are now offering a 1-day overview seminar on this topic. The main goal is to give you a clear view of the Yocto Project and the value it can bring to your embedded Linux device projects. You will…