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Kernel: Jailhouse 0.9 and Chromebook Tablet Switch Driver

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Linux
  • [ANNOUNCE] Jailhouse 0.9 released

    We are happy to have completed a new version of the partitioning
    hypervisor Jailhouse. The release got delayed a couple of times,
    primarily due to the introduction of MMU support to ARM demo inmates.
    But now it's done and working.

    Code changes are fewer than for the previous release, but the number of
    commits is almost this same: 171 commits, 240 files changed, 4458
    insertions, 1925 deletions.

  • Jailhouse 0.9 Hypervisor Released With NVIDIA TX2 Support

    A new version of the Jailhouse partitioning hypervisor for Linux systems is now available.

    Hardware now supported by the Jailhouse 0.9 release include the NVIDIA Jetson TX2, NXP MCIMX8M-EVK, and Emtrion emCON-RZ/G1H.

  • Linux 4.18 Lands Chromebook Tablet Switch Driver

    Another one of the hardware support additions for the now in-development Linux 4.18 kernel is finally the mainlining of the Chromebook Tablet Switch Driver.

    This Chromebook Tablet Switch Driver has been in development for more than one year in patch form outside of the mainline kernel and already used by Chrome OS. This driver is responsible for handling the tablet switch event on Intel-powered convertible/2-in-1 Chromebooks when switching between the conventional Chromebook/laptop mode and tablet mode.

    These x86 Chromebooks rely upon ACPI for the tablet switch event and the driver makes use of the kernel's SW_TABLET_MODE switch event.

Sound themes in Linux: What every user should know

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Linux

Like all modern operating systems, Linux has a set of specifications for sound themes. Sound themes are sets of similar sounds coordinated into themes that sound good together. They signal events such as switching to a different workspace, opening a new application, plugging and unplugging hardware, and alerting you when your battery is low or fully charged. The sounds that play is determined by which themes you have installed and which ones you’re currently using. If your desktop tries to play a sound your theme doesn’t have, it will play a sound from another sound theme if it can find one.

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Chromebooks: GNU/Linux on Samsung Chromebook Plus and More

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GNU
Linux
Google
  • Samsung Chromebook Plus is second Chromebook to support Linux apps (Project Crostini)

    Google announced last month that it was bringing the ability to run Linux apps to Chromebooks, confirming the existence of Project Crostini, which was first spotted in the Chromium code earlier this year, and which adventurous users have been testing for months.

    Up until now you’ve needed a Google Pixelbook to try Crostini. Now it looks like Google has added support for a second Chromebook.

    Several users have noted in recent days that Crostini now works on the Samsung Chromebook Plus, allowing you to run desktop Linux apps alongside Chrome apps.

  • Samsung Chromebook Plus now supports Linux apps in Dev channel

    There has been a lot of exciting stuff happening in the world of Chrome OS, but the most exciting development might be Linux apps. Chrome OS started as a simple web-based “OS,” but the addition of the Play Store, and now Linux apps, has made it a respectable operation system (no air quotes required). The Samsung Chromebook Plus now supports Linux apps on the Dev channel.

  • Linux app support arrives on the Samsung Chromebook Plus

    Google officially announced Linux app support on Chrome OS at I/O 2018, but until now, the only supported model has been the Pixelbook. The Linux VM requires a kernel version that many Chromebooks don't have, but with Google backporting the required functionality to earlier kernels, we can only speculate which models will actually be supported.

    There was mounting evidence that the Samsung Chromebook Plus would eventually have Linux apps, and now Google has confirmed that. Users on the Chrome OS Dev channel can now enable Linux app support on the Chromebook Plus, just as they would on the Pixelbook (full instructions here).

  • Google’s Pixelbook, the world’s best Chromebook, just dropped to its lowest price ever

    When it comes to Chromebooks, there’s the Google Pixelbook and then there’s everything else. People often think of dirt-cheap laptops when they think of Google’s Chrome OS and of Chromebooks. Entry-level models are fantastic for anyone looking for a low-cost computer for basic work and streaming, and that’s why they’re so popular in the education market. But what happens when you get older and you want a Chromebook with some kick? That’s where the Pixelbook comes in, and it has more than enough kick for anything you might want to throw at it.

  • What to look for in a used Chromebook

    One of the best Chromebook features often gets overlooked: over six years of operating system support direct from Google. That means you get all the new features that come to Chrome OS (provided your hardware allows) as well as security fixes and those tiny updates that make things just work better. That means a Chromebook you buy today will still be supported in 2024, and a Chromebook that sold new in 2016 still has four years of updates ahead of it.

  • Google Could Let Chromebook Users Manage All of Their Android Files in Chrome OS

    Chromium evangelist at Google François Beaufort revealed the fact that the Chrome OS team is planning to add support for managing all our Android files on Chromebook devices from within the Files app.

    Dubbed "Android Files," the new feature has been implemented in the Chrome OS Dev channel and promises to let Chromebook owners manage all of their Android files with the default Files app in the Chrome OS operating system. At the moment, Chromebook users can only access image, video and audio files from their Android devices, but this change could let them access all file types.

Btrfs Can Now Remove Directories Much Faster In Send Mode: From 33 Hours To 2 Minutes

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Linux

For those making use of Btrfs' incremental send/receive functionality for efficient backups or other reasons for moving data between Btrfs volumes, the directory deletion performance for Btrfs send is now much faster.

In particular, the Btrfs send code is much faster now when dealing with large directories removed. On a directory with two million entries, the improvement yields a drop from about 2000 minutes (33 hours) to about one minute and a half. It's quite a difference but will only be noticeable if you have a great deal of files in a directory and are using Btrfs send.

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Phoronix on Linux 4.17 and Linux 4.18

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Linux
  • Linux 4.18 Scheduler Updates Benefit Schedutil, NUMA, vCPUs

    The scheduler updates submitted today for the Linux 4.18 kernel merge window include a few notable changes.

    This pull does contain the previously-covered scheduler optimization for virtual CPUs. That change is about not scheduling threads on pre-empted vCPUs and in some synthetic scheduler benchmarks yielded a change by as much as 8~25%.

  • Linux 4.17 Kernel Patch Brings -march=native Support

    A Gentoo user has revised his kernel patch allowing the mainline Linux kernel to be built with the GCC "-march=native" compiler optimizations for targeting the kernel build against your particular CPU.

    While -march=native of modern compilers is popular with developers/enthusiasts for building optimized packages targeting your specific CPU micro-architecture, the mainline Linux kernel still does not support this functionality. But Gentoo user Alexey Dobriyan.

  • Linux 4.18 Continues Onboarding Centaur x86 CPUs

    As reported a few months ago, the new Chinese x86 CPU venture formed between the government of Shanghai and VIA has been working on Linux support for these new x86 CPUs and that onboarding has continued with Linux 4.18.

    Zhaoxin has been working on a new wave of x86-compatible processors based upon the VIA Centaur x86_64 Isiah design. This year is when they plan to release their quad-core CPUs manufactured on a 16nm process and supporting DDR4, PCI Express 3.0, and other modern features while in 2019 is their aggressive plans for moving to a 7nm CPU with DDR4, PCI Express 4.0, and more competitive performance.

Kernel: Linux Version 4.17, Linux Version 4.18 and Linux Version 5

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Linux
  • Version 4.17 of the Linux kernel is here... and version 5.0 isn't far away

    In his weekly message to the Linux community on Sunday, Linus Torvalds announced the release of Linux 4.17. The release comes a couple of months after the first release candidate, and in his message Torvalds also talks about version 5.0 of the Linux kernel.

    Having previously said that Linux kernel v5.0 "should be meaningless", he said that this next major numerical milestone will come around "in the not too distance future". For now, though, it's version 4.17 -- or Merciless Moray, if you prefer -- that's of interest.

  • Loading Arbitrary Executables as Kernel Modules

    On the flip side, however, Kees acknowledged that Alexei's patch was an "interesting idea. I think it can work, it just needs much much more careful security boundaries and to solve our autoloading exposures too."

    However, Alexei characterized Kees' response as "security paranoia without single concrete example of a security issue."

    And Andy also disagreed with Kees' assessment. He pointed out that Kees' issue depended on an attacker finding and exploiting an additional vulnerability that would allow containers to redirect a module outside of itself—something that was not a kernel feature and that would be treated as a bug if it were ever discovered.

    Kees agreed with Andy that the problem was not with Alexei's code but instead with potential vulnerabilities elsewhere in the kernel. He said, "I just don't want to extend that problem further." And he added that he wasn't opposed to Alexei's patch, but that his concerns were not paranoia, and "there are very real security boundary violations in this model."

  • Linus Torvalds doesn't release Linux kernel 5.0 (yet)

    LINUX IS set to reach a major milestone soon, or if you prefer an arbitrary change of number. Point being, it's about to reach version 5.0.

    Linux Torvalds has long maintained that version number changes shouldn't be viewed with any special significance or fanfare, but the human mind is constantly determined to make order out of chaos, so acknowledge it, we will.

    Meanwhile, version 4.17 has arrived. As Torvalds explains: "No, I didn't call it 5.0, even though all the git object count
    numerology was in place for that.

  • Linux 4.18's Latest Improvements For Power Management, CPUFreq

    Rafael Wysocki has submitted the ACPI and power management updates already for the newly-opened Linux 4.18 merge window.

  • Linux 4.18 To Report CPU Temps Finally On Stoney & Bristol Ridge

    The hardware monitoring "hwmon" updates have been sent in for the just-opened Linux 4.18 kernel merge window while what's interesting this time around are the k10temp driver updates for AMD CPU temperature reporting.

    With Linux 4.18, the k10temp kernel driver is now able to report temperatures on Stoney Ridge and Bristol Ridge processors. Stoney Ridge are the 2016 ultra-mobile APUs with Excavator v2 cores and GCN 1.2 graphics. Bristol Ridge as a refresher is the 2016 desktop/mobile APUs like the Athlon X4 970, A12-9800, A10-9700, etc. Only now with the Linux 4.18 kernel is there CPU temperature reporting under Linux for these two year old processors.

A look at Linux Mint 19 Beta

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GNU
Linux
Reviews

Beta versions of Linux Mint 19 "Tara" are out; the Linux Mint development team released Cinnamon, MATE and XFCE beta versions of the upcoming new version of Linux Mint today.

Note: Beta versions are not necessarily ready for use in production environments. They are designed for testing and if you run Linux Mint in production environments, you may want to install Linux Mint 19 Beta in a virtual machine or a spare-machine to test new functionality and see what has changed.

It will be possible to update from Linux Mint 19 Beta to Stable once the stable version is released; systems with Linux Mint 18.3 can also be upgrade to the new version directly.

The release notes linked at the bottom of the article link to downloads. Just follow the links and download the desired edition of Linux Mint 19 Beta to your system.

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GNU Linux-libre 4.17

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GNU
Linux
  • GNU Linux-libre 4.17-gnu Kernel Released

    Based on yesterday's upstream Linux 4.17 kernel release, the FSF-approved GNU Linux-libre 4.17-gnu kernel is now available for a fully free software kernel on capable hardware configurations.

    The GNU Linux-libre kernel continues focusing upon de-blobbing drivers or stripping out drivers where it depends upon closed-source firmware/microcode images as well as disabling support for loading closed-source kernel modules.

  • GNU Linux-libre 4.17-gnu: -ENOTEMPTY

    The greatest news is that the driver for Dreamcast Yamaha AICA sound
    hardware is no longer cleaned up: the firmware for it is Free Software,
    and Jason Self's upcoming linux-libre-firmware release will have it.

    No other significant changes were made, just the usual assortment of
    adjustments.

  • Linux Mint 19 "Tara" Cinnamon Beta Released, GNU Linux-libre 4.17-gnu Kernel Now Available, NVIDIA Isaac Launches and More

    GNU Linux-libre 4.17-gnu kernel, which removes all non-free components from Linux, is now available. See the announcement for all the details.

  • Linus Torvalds Releases Linux Kernel 4.17 as Linux 5.0 Is Coming Later This Year

    Linus Torvalds announced over the weekend the availability of the final release of the Linux 4.17 kernel series, opening the merge window for the next kernel branch, Linux 4.18.

    Even though Linus Torvalds promised us to release the Linux 5.0 kernel series once the Linux kernel code reaches 6 million Git objects, an achievement reached when the development cycle of the Linux 4.17 kernel kicked off last month, it looks like we have to wait a little longer for the big version change as the Linux creator announced the release of Linux 4.17 as the most advanced kernel series.

Stackable 8-relay add-on supports up to 64 relays per Raspberry Pi

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Linux

Sequent Microsystems’ “Raspberry Pi 8-Relay Card” provides 8x relays and can be stacked to enable 64 relays per Raspberry Pi for home automation applications such as smart sprinklers.

Sequent Microsystems has gone to Kickstarter to launch a “Raspberry Pi 8-Relay Card,” a more-focused version of last fall’s successfully Kickstarted Raspberry Pi Mega-IO Expansion Card. The new version is 40 percent more affordable because it strips out all the general-purpose I/O and focuses only on the relays. Like the Mega-IO, the boards are stackable, so you can stack up to 8x boards for a total of 64 relays per Raspberry Pi.

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Linux 3.2 & 4.1 Reach End of Life, Users Urged to Upgrade to Newer LTS Branches

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Linux

Packed with a total of 151 changed files, with 1139 insertions and 583 deletions, the Linux 3.2.102 kernel has been released at the beginning of June 2018 as the last scheduled maintenance update of the Linux 3.2 series, which means that if you're still using this kernel, you should upgrade to a newer LTS branch soon.

"I'm announcing the release of the 3.2.102 kernel. All users of the 3.2 kernel series should upgrade. However, this is likely to be the final stable update for 3.2. Users should plan to switch to a newer longterm stable branch such as 4.14, 4.9 or 4.4 in the near future," said Ben Hutchings in a mailing list announcement.

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Fedora: Anaconda Improvements, Greenboot, Fedora Scientific Vagrant Boxes and Abhishek

  • Anaconda improvements in Fedora 28
    Fedora 28 was released last month, and the major update brought with it a raft of new features for the Fedora Installer (Anaconda). Like Fedora, Anaconda is a dynamic software project with new features and updates every release. Some changes are user visible, while others happen under the hood — making Anaconda more robust and prepared for future improvements.
  • Lorbus: Introducing: greenboot
    Not too long ago, I applied to Google Summer of Code for the student scholarship position together with a Fedora project ideated by Peter Robinson, who is the principal IoT architect at Red Hat, named Fedora IoT: Atomic Host Upgrade Daemon. As you may be guessing by now, I was very fortunate and the proposal was accepted! The coding phase started on the 14th of May and in this blog post I’ll try to give a little insight into my first month working on the project.
  • Pre-release Fedora Scientific Vagrant Boxes
    I am very excited to share that sometime back the Fedora project gave the go ahead on my idea of making Fedora Scientific available as Vagrant boxes starting with Fedora 29. This basically means (I think) that using Fedora Scientific in a virtual machine is even easier.
  • [Week 5] GSoC Status Report for Fedora App: Abhishek

Red Hat News

  • An Open Source Load Balancer for OpenShift
    A highly-available deployment of OpenShift needs at least two load balancers: One to load balance the control plane (the master API endpoints) and one for the data plane (the application routers). In most on-premise deployments, we use appliance-based load balancers (such as F5 or Netscaler).
  • Red Hat Beefs Up Platform as a Service Suite
    Red Hat has begun shipping Red Hat Fuse 7, the next major release of its distributed, cloud-native integration solution, and introduced a new fully hosted low-code integration platform as a service (iPaaS) offering, Fuse Online. With Fuse 7, the vendor says expanding its integration capabilities natively to Red Hat OpenShift Container Platform, an enterprise Kubernetes platform. Fuse gives customers a unified solution for creating, extending and deploying containerized integration services across hybrid cloud environments.
  • Red Hat ‘Fuses’ Low Code Development and Data Integration
    Red Hat, a provider of open source solutions, has announced Red Hat Fuse 7, the next major release of its distributed, cloud-native integration solution, and introduced a new fully hosted low-code integration platform as a service offering, Fuse Online. With Fuse 7, Red Hat is expanding its integration capabilities natively to Red Hat OpenShift Container Platform, a comprehensive enterprise Kubernetes platform. Fuse gives customers a unified solution for creating, extending and deploying containerized integration services across hybrid cloud environments.
  • The GPL cooperation commitment and Red Hat projects
    As of today, all new Red Hat-initiated open source projects that opt to use GPLv2 or LGPLv2.1 will be expected to supplement the license with the cure commitment language of GPLv3. The cure language will live in a file in the project source tree and will function as an additional permission extended to users from the start. This is the latest development in an ongoing initiative within the open source community to promote predictability and stability in enforcement of GPL-family licenses. The “automatic termination” provision in GPLv2 and LGPLv2.x is often interpreted as terminating the license upon noncompliance without a grace period or other opportunity to correct the error in compliance. When the Free Software Foundation released GPLv2 in 1991, it held nearly all GPL-licensed copyrights, in part a consequence of the copyright assignment policy then in place for GNU project contributions. Long after the Linux kernel and many other non-GNU projects began to adopt the GPL and LGPL, the FSF was still the only copyright holder regularly engaged in license enforcement. Under those conditions, the automatic termination feature of GPLv2 section 4 may have seemed an appropriate means of encouraging license compliance.
  • Monness Believes Red Hat (NYSE: RHT) Still Has Room to Grow
  • Comparing Red Hat (RHT) & Autoweb (AUTO)
  • As Red Hat (RHT) Share Value Rose, Calamos Advisors Upped Its Position by $300,831; Chilton Capital Management Increases Stake in Equinix (EQIX)
  • Blair William & Co. IL Buys 23,279 Shares of Red Hat Inc (RHT)