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Kernel Leftovers

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  • Linux gods at last turn their gaze to Pi 400: Computer-in-a-keyboard receives mainline kernel support with v5.14 • The Register

    Raspberry Pi fans have reasons for cheer this week as support for the Pi 400 showed up in the queue for version 5.14 of the Linux kernel, and hosting outfit Mythic Beasts added overclocked Pi 4s to its Raspberry Pi cloud.


    Software options look set to increase with the arrival of mainline kernel support in Linux 5.14 with the addition of the Pi 400 into DeviceTree (as reported by Phoronix) in the "for-next" branch.

    It's not clear why this has taken quite so long, since the device is very close to the Raspberry Pi 4. No kernel driver tweaks seem to be on the cards, just DTS changes for the higher clock speed, updated Wi-Fi chip, power-off via GPIO, and the dropping of the activity LED.

    The latter we noted in our review, where the power LED originally did double-duty for activity and looked downright odd. "It seemed like a good idea at the time," Pi supremo Eben Upton told us, but the notification was dispensed with in launch models.

  • Beatriz Martins de Carvalho: Outreachy - Introduction

    I am Beatriz Carvalho, brazilian, living in Fundão, Portugal. I am graduated in computer engineering at Unipampa in Brazil. I work mostly with C, Python and I am learning JavaScript, CSS, among other things to create this site... I like Harry Potter, Lord of the Rings, One Piece, The Witcher... I also like to drink wine and some cocktails and last but not least: I love cats, I have two: Ophélia and Cisco.

    I've just been selected as an Outreachy intern for Linux Kernel working with my mentors Melissa Wen and Daniel Vetter on the project "Improvements to DRI-devel (aka kernel GPU subsystem)".

    As an Outreachy intern, my first step is to say out loud for everyone to see my core values, Outreachy organizers make available a list with some values, and going through the list made me realize some things I value the most in life as an individual and once I started to work in the Linux Kernel these values caught my attention...

  • Brendan Gregg: USENIX LISA2021 BPF Internals (eBPF)

    For USENIX LISA2021 I gave a 40 minute deep dive talk on BPF internals for Linux, focusing on observability tracing tools. Since there are already BPF internals references online (listed in this post) I used the opportunity to create some new content, showing how bpftrace instrumentation works from user space down to machine code. I break it down to all the small components involved, where you'll find it's actually quite easy.

  • FWUPD 1.6.1 Adds FreeBSD UEFI Capsule Handling, More Hardware Now Supported - Phoronix

    A new feature point release is available for FWUPD for handling of system/component firmware and BIOS updating on Linux and other platforms.

    FWUPD 1.6.1 while just a point release does bring with it a few noteworthy additions. First up, FWUPD 1.6.1 now supports FreeBSD UEFI Capsule updates. This comes thanks to work by 3mdeb on porting FWUPD to the BSDs and that work starting to hit the mainline tree.

  • The "Memory Folios" Work Continues - Improving Linux Performance, 7% Faster Kernel Builds - Phoronix

    Matthew Wilcox of Oracle today sent out his latest patch series implementing the new "memory folios" type for the Linux kernel in an effort to improve Linux memory management and allow for better efficiency that ultimately translates into measurable performance gains.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.