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Gentoo

Gentoo-Based exGENT Linux Now Available for Raspberry Pi 4

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OS
Gentoo

Developer Arne Exton is experimenting with new projects and released a version of his exGENT Linux distribution for the latest Raspberry Pi 4 single-board computer.

Based on Gentoo Linux, exGENT is a distro created by Arne Exton and designed for advanced Linux users and anyone else who really wants to learn Linux. It’s one of the very few up-to-date live Gentoo systems.

While exGENT Linux is fun to use on the desktop, you can now use it on your tiny Raspberry Pi 4 computer thanks to the hard work by developer Arne Exton.

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Porteus Kiosk 5.0 Released with Linux 5.4 LTS, Many Improvements

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Gentoo

It’s been more almost six months since the last Porteus Kiosk release and the team lead by Tomasz Jokiel proudly unveiled today a new major series of the Gentoo-based operating system that lets you transform a computer into a versatile and flexible kiosk system.

Porteus Kiosk 5.0 includes major software upgrades, starting with the kernel, which has been updated to the long-term supported Linux 5.4 series. Linux kernel 5.4.23 LTS is included in this first release of the 5.0 series, adding better support for newer hardware and many other benefits.

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Michał Górny on Python in Gentoo

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Development
Gentoo
  • Gentoo Python Guide

    Gentoo provides one of the best frameworks for providing Python support in packages among operating systems. This includes support for running multiple versions of Python (while most other distributions avoid going beyond simultaneous support for Python 2 and one version of Python 3), alternative implementations of Python, reliable tests, deep QA checks. While we aim to keep things simple, this is not always possible.

    At the same time, the available documentation is limited and not always up-to-date. Both the built-in eclass documentation and Python project wiki page provide bits of documentation but they are mostly in reference form and not very suitable for beginners nor people who do not actively follow the developments within the ecosystem. This results in suboptimal ebuilds, improper dependencies, missing tests.

  • No more PYTHON_TARGETS in single-r1

    Since its inception in 2012, python-single-r1 has been haunting users with two sets of USE flags: PYTHON_TARGETS and PYTHON_SINGLE_TARGET. While this initially seemed a necessary part of the grand design, today I know we could have done better. Today this chymera is disappearing for real, and python-single-r1 are going to use PYTHON_SINGLE_TARGET flags only.

    I would like to take this opportunity to explain why the eclass has been designed this way in the first place, and what has been done to change that.

    Why PYTHON_SINGLE_TARGET?

Pentoo – A Security-Focused Linux Distro Based on Gentoo

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Gentoo
Security

Pentoo is an open-source Live CD and Live USB Gentoo Linux-based operating system designed for experts in the field of penetration testing and security assessment. It is available for both 32-bit and 64-bit architectures and is can be run as an overlay on an existing Gentoo installation.

If you’re not familiar with Gentoo Linux, it is an advanced Linux distro that enables users to compile their operating system from the source in other to enjoy advantages such as applications and optimal performance specific to the computer, to mention a couple.

It does not have an installer and users are to translate the software they want before continuing with the installation. In short, one shouldn’t go near it if they don’t have the perseverance for filing through Linux documentation.

Just like with Gentoo, Pentoo has an advanced Python-based package management system with cool features such as “fake” (OpenBSD-style) installs, system profiles, config file management, safe unmerging, and virtual packages, among others.

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exGENT 2020 Linux Distro Makes Gentoo Fun to Use with the LXQt Desktop

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Linux
Gentoo

Arne Exton’s exGENT GNU/Linux distribution aims to continue the tradition of Gentoo-based live distros with a new release that puts the latest LXQt 0.14.1 desktop environment in the spotlight.

We all know by now that Gentoo is one of the hardest Linux-based operating systems to install due to packages needing to be compiled from sources locally. But the good thing about Gentoo is that it doesn’t uses a one-size fits all approach, which mens that it can be fully optimized for specific hardware.

Newcomers who want to try Gentoo Linux on their personal computer have a hard time due to the lack of Gentoo-based live distributions. Here’s where exGENT Linux comes into play, promising to offer users an up-to-date Gentoo-based live system that can be installed in a few minutes.

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Meet Calculate Linux 20!

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Gentoo

For this new (year) release, Gentoo 17.1 was used as the base profile, all binary packages recompiled with GCC 9.2, and overlays managed with eselect. Calculate Linux will no longer come in 32 bits.

Are available for download: Calculate Linux Desktop featuring the KDE (CLD), Cinnamon (CLDC), LXQt (CLDL), Mate (CLDM) or else Xfce (CLDX and CLDXS) scientific, Calculate Directory Server (CDS), Calculate Linux Scratch (CLS) and Calculate Scratch Server (CSS).

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Also: Gentoo-Based Calculate Linux 20 Released To Ring In The New Year, Free Of 32-Bit Support

Calculate Linux 20 Now Available For Download

Michał Górny: A distribution kernel for Gentoo

Filed under
Linux
Gentoo

The traditional Gentoo way of getting a kernel is to install the sources, and then configure and build one yourself. For those who didn’t want to go through the tedious process of configuring it manually, an alternative route of using genkernel was provided. However, neither of those variants was able to really provide the equivalent of kernels provided by binary distributions.

I have manually configured the kernels for my private systems long time ago. Today, I wouldn’t really have bothered. In fact, I realized that for some time I’m really hesitant to even upgrade them because of the effort needed to update configuration. The worst part is, whenever a new kernel does not boot, I have to ask myself: is it a real bug, or is it my fault for configuring it wrong?

I’m not alone in this. Recently Михаил Коляда has talked to me about providing binary kernels for Gentoo. While I have not strictly implemented what he had in mind, he inspired me to start working on a distribution kernel. The goal was to create a kernel package that users can install to get a working kernel with minimal effort, and that would be upgraded automatically as part of regular @world upgrades.

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Also: Gentoo Developers Exploring The Possibility Of Shipping Distribution Binary Kernels

Chrome OS 79 Adds Media Controls in Lock Screen, Mouse Acceleration Control

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GNU
Linux
Gentoo
Google

Just a few days after the release of its Chrome 79 web browser, Google promoted the Chrome OS 79 Linux-based operating system for Chromebooks to the stable channel, rolling out now to all supported devices.

Based on the recently released Google Chrome 79 web browser, which landed for Linux, Android, macOS, and Windows platforms last week, Chrome OS 79 is here with a bunch of improvements and new features, starting with media controls in the lock screen to make it more convenient for users to control their media.

The new media controls in lock screen feature allows users to control their media right from the lock screen when they're listening to audio on their Chromebook. Users will be able to play, pause, and skip audio tracks Spotify, YouTube Music, and many other apps without unlocking their Chromebook.

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Funtoo Linux 1.4 Released

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GNU
Linux
Gentoo

Drobbins has announced the new release of Funtoo Linux 1.4 on Sep 11, 2019.

This release is based on a 21 June 2019 snapshot of Gentoo Linux with significant updates to key parts of the system, such as compiler and OpenGL subsystem.

This is the fourth release of the Funtoo Linux 1.x series, which may be the last update of this release, as the developer said he would start developing 2.0 a month later.

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A Look at Redcore Linux: Gentoo based Linux Distribution

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GNU
Linux
Gentoo
Reviews

Many people in the technology world have heard, at least in passing, of the Linux distribution Gentoo. Gentoo is one of the most famous distributions to the point of becoming a joke; with it’s complexity and depth, installing Gentoo has been a daunting task for many.

Redcore is one of the latest distributions to attempt to bring the power of Gentoo to the everyday user.

I previously wrote an article in 2017 about Sabayon Linux, another popular Gentoo based system; but Redcore Linux holds its own and pulls its own weight.

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More in Tux Machines

NVIDIA GeForce vs. AMD Radeon Vulkan Neural Network Performance With NCNN

With having added Tencent's NCNN tests to the Phoronix Test Suite with Vulkan acceleration, here is a look at the real-world impact by using RealSR-NCNN for scaling up with RealSR. Various NVIDIA GeForce and AMD Radeon graphics cards were tested for this initial NCNN / RealSR-NCNN Vulkan comparison. This is our first time looking at how well Vulkan performs in this area with the current state of the Linux drivers. The GeForce hardware was tested with the latest 450 series proprietary driver while on the Radeon side it was with Linux 5.9 and Mesa 20.3-devel using the RADV Vulkan driver. One of the Tencent developers working on NCNN has commented as well that using RADV's ACO offers a big boost for the performance, which fortunately is the current default for the RADV Vulkan driver. Read more Also: Phoronix Test Suite / OpenBenchmarking.org Now Has 600 Different Tests/Benchmarks

Kernel Space: Trenchboot, RAID10, Spelling Mistakes and Initcalls

  • Trenchboot Secure Launch Support For Linux Sees New Patches

    For a while now Oracle engineers and others have been working on Trenchboot as a means of secure launch/boot support when paired with the likes of Intel TXT and AMD SKINIT for trusted execution and configuring each piece of the software boot chain for trusted/secure handling. The latest kernel patches have been sent out for review for secure launching of the kernel. Earlier this year Oracle engineers sent out Linux kernel patches for Trenchboot while on Thursday the newest work surfaced.

  • Linux 5.10 To See RAID10 DISCARD Improvement - From 259 Seconds To Less Than 1 Second

    Queued today into the block subsystem's "-next" area ahead of the Linux 5.10 cycle kicking off next month are some MD RAID enhancements. In particular, thanks to Red Hat's Xiao Ni is improved RAID10 discard request handling. The change with a set of five SSDs in a RAID10 array on a test system dropped the mkfs.xfs time for creating an XFS file-system taking 4 minutes 39 seconds to less than 1 second... Quite a noticeable difference in that scenario.

  • Colin King: Kernel janitor work: fixing spelling mistakes in kernel messages

    The Linux 5.9-rc6 kernel source contains over 300,000 literal strings used in kernel messages of various sorts (errors, warnings, etc) and it is no surprise that typos and spelling mistakes slip into these messages from time to time. To catch spelling mistakes I run a daily automated job that fetches the tip from linux-next and runs a fast spelling checker tool that finds all spelling mistakes and then diff's these against the results from the previous day. The diff is emailed to me and I put my kernel janitor hat on, fix these up and send these to the upstream developers and maintainers. The spelling checker tool is a fast-and-dirty C parser that finds literal strings and also variable names and checks these against a US English dictionary containing over 100,000 words. As fun weekend side project I hand optimized the checker to be able to parse and spell check several millions lines of kernel C code per second.

  • Initcalls, part 2: Digging into implementation

    In the first part of this blog post series on Linux kernel initcalls, we looked at their purpose, their usage, and ways to debug them (using initcall_debug or FTrace). In this second part, we'll go deeper into the implementation of initcalls, with a look at the colorful __device_initcall() macro, the rootfs initcall, and how modules can be executed.

Graphics: AMD, KWinFT and Zink

  • AMD Sends Out Linux Kernel Support For Van Gogh APUs - Confirms DDR5 Memory, VCN3

    s a nice Friday afternoon patch series there is the 275k lines of code for wiring up the next-generation AMD Van Gogh APU support under Linux. Earlier this week there were the Mesa patches for AMD Dimgrey Cavefish and Van Gogh while today the kernel-side portion for Van Gogh was sent out for the AMDGPU kernel driver.

  • AMD Van Gogh APUs Spotted In Linux Patch, Features DDR5, Navi 2 iGPU

    AMD submitted the 45 Linux kernel patches, which weigh in at 275,000 lines of code, to enable Linux support for the coming APUs. The patches also reveal that Van Gogh comes with Video Core Next 3.0, which supports AV1 decode. In the past, Phoronix has found patches indicating VCN 3.0 (video encode) is native to the Navi 2 graphics engine. Pairing the Navi 2 / RDNA 2 graphics engine with DDR5/LPDDR5 could unlock quite a bit of graphical horsepower, as integrated graphics engines tend to respond well to increased memory throughput. Van Gogh is also predicted to come with Zen 2 cores, and it will certainly be interesting to see what kind of impact the improved memory throughput has on the Zen 2 architecture.

  • Roman Gilg: Universal means to specific ends

    Today new beta versions for all KWinFT projects – that are KWinFT, Wrapland, Disman and KDisplay – were released. With that we are on target for the full release which is aligned with Plasma 5.20 on October 13. Big changes will unquestionable come to Disman, a previously stifled library for display management, which now learns to stand on its own feet providing universal means for the configuration of displays with different windowing systems and Wayland compositors. But also for the compositor KWinFT a very specific yet important feature got implemented and a multitude of stability fixes and code refactors were accomplished. In the following we will do a deep dive into reasons and results of this recent efforts.

  • Mike Blumenkrantz: Engage Thrusters

    Briefly, zink copies the framebuffer state, there’s a number of conditions under which a new pipeline object is needed, which all result in ctx->gfx_pipeline_state.hash = 0;. Other than this, there’s sample count check for sample changes so that the shader can be modified if necessary, and then there’s the setup for creating the Vulkan framebuffer object as well as the renderpass object in get_framebuffer(). Eagle-eyed readers will immediately spot the problem here, which is, aside from the fact that there’s not actually any reason to be setting up the framebuffer or renderpass here, how zink is also flushing the current batch if a renderpass is active. The change I made here was to remove everything related to Vulkan from here, and move it to zink_begin_render_pass(), which is the function that the driver uses to begin a renderpass for a given batch.

Mozilla: Firefox for Android Nightly and Surveillance ('Telemetry')

  • More Recommended extensions added to Firefox for Android Nightly

    As we mentioned recently, we’re adding Recommended extensions to Firefox for Android Nightly as a broader set of APIs become available to accommodate more add-on functionality. We just updated the collection with some new Recommended extensions, including… Mobile favorites Video Background Play Fix (keeps videos playing in the background even when you switch tabs) and Google Search Fixer (mimics the Google search experience on Chrome) are now in the fold. Privacy related extensions FoxyProxy (proxy management tool with advanced URL pattern matching) and Bitwarden (password manager) join popular ad blockers Ghostery and AdGuard. Dig deeper into web content with Image Search Options (customizable reverse image search tool) and Web Archives (view archived web pages from an array of search engines). And if you end up wasting too much time exploring images and cached pages you can get your productivity back on track with Tomato Clock (timed work intervals) and LeechBlock NG (block time-wasting websites).

  • Jeff Klukas: The Nitty-Gritty of Moving Data with Apache Beam

    In this session, you won’t learn about joins or windows or timers or any other advanced features of Beam. Instead, we will focus on the real-world complexity that comes from simply moving data from one system to another safely. How do we model data as it passes from one transform to another? How do we handle errors? How do we test the system? How do we organize the code to make the pipeline configurable for different source and destination systems? We will explore how each of these questions are addressed in Mozilla’s open source codebase for ingesting telemetry data from Firefox clients. By the end of the session, you’ll be equipped to explore the codebase and documentation on your own to see how these concepts are composed together.

  • This Week in Glean: glean-core to Wasm experiment

    On the Glean team we make an effort to move as much of the logic as possible to glean-core, so that we don’t have too much code duplication on the language bindings and guarantee standardized behaviour throughout all platforms. Since that is the case, it was counterintuitive for me, that when we set out to build a version of Glean for the web, we wouldn’t rely on the same glean-core as all our other language bindings. The hypothesis was: let’s make JavaScript just another language binding, by making our Rust core compile to a target that runs on the browser. Rust is notorious for making an effort to have a great Rust to Wasm experience, and the Rust and Webassembly working group has built awesome tools that make boilerplate for such projects much leaner.

  • Data Publishing @ Mozilla

    Mozilla’s history is steeped in openness and transparency – it’s simply core to what we do and how we see ourselves in the world. We are always looking for ways to bring our mission to life in ways that help create a healthy internet and support the Mozilla Manifesto. One of our commitments says “We are committed to an internet that elevates critical thinking, reasoned argument, shared knowledge, and verifiable facts”. To this end, we have spent a good amount of time considering how we can publicly share our Mozilla telemetry data sets – it is one of the most simple and effective ways we can enable collaboration and share knowledge. But, only if it can be done safely and in a privacy protecting, principled way. We believe we’ve designed a way to do this and we are excited to outline our approach here. Making data public not only allows us to be transparent about our data practices, but directly demonstrates how our work contributes to our mission. Having a publicly available methodology for vetting and sharing our data demonstrates our values as a company. It will also enable other research opportunities with trusted scientists, analysts, journalists, and policymakers in a way that furthers our efforts to shape an internet that benefits everyone.