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Ubuntu

Ubuntu: Ubuntu Core, Ubuntu Free Culture Showcase for 18.04, Lubuntu 17.04 EoL

Filed under
Ubuntu
  • Ubuntu Core: A secure open source OS for IoT

    Canonical's Ubuntu Core, a tiny, transactional version of the Ubuntu Linux OS for IoT devices, runs highly secure Linux application packages, known as "snaps," that can be upgraded remotely.

  • Introducing the Ubuntu Free Culture Showcase for 18.04

    Ubuntu’s changed a lot in the last year, and everything is leading up to a really exciting event: the release of 18.04 LTS! This next version of Ubuntu will once again offer a stable foundation for countless humans who use computers for work, play, art, relaxation, and creation. Among the various visual refreshes of Ubuntu, it’s also time to go to the community and ask for the best wallpapers. And it’s also time to look for a new video and music file that will be waiting for Ubuntu users on the install media’s Examples folder, to reassure them that their video and sound drivers are quite operational.

    Long-term support releases like Ubuntu 18.04 LTS are very important, because they are downloaded and installed ten times more often than every single interim release combined. That means that the wallpapers, video, and music that are shipped will be seen ten times more than in other releases. So artists, select your best works. Ubuntu enthusiasts, spread the word about the contest as far and wide as you can. Everyone can help make this next LTS version of Ubuntu an amazing success.

  • Lubuntu 17.04 has reached End of Life

    The Lubuntu Team announces that as a non-LTS release, 17.04 has a 9-month support cycle and, as such, reached end of life on Saturday, January 13, 2018. Lubuntu will no longer provide bug fixes or security updates for 17.04, and we strongly recommend that you update to 17.10, which continues to be actively supported with security updates and select high-impact bug fixes.

Ubuntu 18.04 LTS Wallpaper Contest Welcomes Talented Photographers and Artists

Filed under
Ubuntu

Announced today by Ubuntu member Nathan Haines, Ubuntu Free Culture Showcase for Ubuntu 18.04 LTS is now officially open for submissions, and since Ubuntu 18.04 it's an LTS (Long-Term Support) version, which Canonical will support for the next five years with software and security updates, it's more than a wallpaper contest.

Well, of course, it's not a contest, because you won't win any prize besides the fact that your work will be showcased to millions of Ubuntu users worldwide. This time, besides wallpapers, Ubuntu Free Culture Showcase also looks for new video and music files that will be available in the Examples folder of Ubuntu 18.04 LTS' live installation medium.

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Benchmarking Ubuntu's Low-Latency Kernel & Liquorix Post-Meltdown

Filed under
Graphics/Benchmarks
Security
Ubuntu

The Ubuntu low-latency kernel is designed for, well, low-latency workloads like audio processing/recording. The lowlatency kernel compared to the generic Linux x86_64 kernel enables IRQ_FORCED_THREADING_DEFAULT, disables TREE_RCU in favor of PREEMPT_RCU, disables OPTPROBES, enables UNINLINE_SPIN_UNLOCK while disables the INLINE_*_UNLOCK tunables, enables PREEMPT support, changes to 1000Hz tick from 250Hz, and enables LATENCYTOP support.

The Liquorix kernel continues to be a bit more unique and among its alterations compared to a generic kernel is Zen interactive tuning, making use of the MuQSS process scheduler, hard kernel preemption, BFQ I/O scheduler by default, network optimizations, and more as outlined at Liquorix.net. Liquorix also defaults to CPUFreq on Intel CPUs and uses the ondemand governor rather than the other tested kernels defaulting to P_State powersave.

For these tests were benchmarks of 4.13.0-25-generic (the current default Ubuntu 17.10 kernel with KPTI patched), 4.14.13-041413-generic as the latest upstream stable kernel from the Ubuntu Mainline Kernel PPA, 4.14.13-041413-lowlatency as the equivalent low-latency Ubuntu kernel, and then 4.14.0-13.1-liquorix as the latest Liquorix kernel via its Launchpad PPA. All of these kernels had KPTI protection present and enabled, none of them currently have the (currently out-of-tree) Retpoline support.

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Also: Ubuntu 17.10.1 ISOs available with corrupting BIOS fix

Tweaking Ubuntu 17.10 To Try To Run Like Clear Linux

Filed under
Ubuntu

Even with the overhead of having both KPTI and Retpoline kernel support in place, our recent Linux distribution benchmarks have shown Intel's Clear Linux generally outperforming the more popular distributions. But if applying some basic performance tweaks, can Ubuntu 17.10 perform like Clear Linux? Here are some benchmarks looking at a few factors.

In our forums there were recently some users attributing the Clear performance benefit to their CFLAGS and the distribution defaulting to the P-State "performance" governor rather than the "powersave" governor. It's true those are two of the ways this Intel open-source platform tries to deliver better out-of-the-box performance, but that is not all. Explained at ClearLinux.org, they also apply automatic feedback-driven optimizations (GCC FDO), function multi-versioning (FMV) to deliver optimized functions selected at run-time based upon the CPU micro-architecture being used, and various other approaches for trying to deliver the best out-of-the-box Linux performance that does include backporting various patches, etc. And, yes, hopefully this article can provide some motivation for Ubuntu and other distributions to become a bit more aggressive with their defaults to deliver a more optimized experience on installation.

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Also: Ubuntu Unity Remix Day 3: Unity Tweak Tool

*buntu 17.04 End Of Life and *buntu 17.10.1

Filed under
Ubuntu
  • Ubuntu 17.04 (Zesty Zapus) Has Reached End of Life, Upgrade to Ubuntu 17.10 Now

    As of today, January 13, 2018, the Ubuntu 17.04 (Zesty Zapus) operating system has reached end of life and it's no longer supported by Canonical with security and software updates.

    Released last year on April 13, Ubuntu 17.04 (Zesty Zapus) was the last version of the popular operating system to ship with the Unity 7 desktop environment by default. It was powered by the Linux 4.10 kernel series, Mesa 17.0 graphics stack, and X.Org Server 1.19 display server.

  • Xubuntu 17.04 End Of Life

    On Saturday 13th January 2018, Xubuntu 17.04 goes End of Life (EOL). For more information please see the Ubuntu 17.04 EOL Notice.

    We strongly recommend upgrading to the current regular release, Xubuntu 17.10.1, as soon as practical. Alternatively you can download the current Xubuntu release and install fresh.

  • Xubuntu 17.10.1 Release

    Following the recent testing of a respin to deal with the BIOS bug on some Lenovo machines, Xubuntu 17.10.1 has been released. Official download sources have been updated to point to this point release, but if you’re using a mirror, be sure you are downloading the 17.10.1 version.

    No changes to applications are included, however, this release does include any updates made between the original release date and now.

Ubuntu 17.10 "Artful Aardvark" Respin ISOs Are Now Available to Download

Filed under
Ubuntu

Several users reported last month broken BIOSes on their Lenovo, Acer, and Toshiba laptops due to a bug in the Ubuntu 17.10 installation images that won't allow them to access their BIOS settings. The BIOS could be bricked even if the user ran the Ubuntu 17.10 image in live mode, without installing the OS.

Canonical was quick to temporarily disable access to Ubuntu 17.10 downloads from their ubuntu.com website warning people about the issue. A workaround and a fix for existing users were available shortly after that, as they had to update the kernel packages in Ubuntu 17.10 to disable the intel-spi driver at boot time.

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Meltdown Patches and Problems

Filed under
Security
Ubuntu
  • [Ubuntu] Meltdown and Spectre Status Update

    On Tuesday, January 9, 2018 we released Ubuntu kernel updates for mitigation of CVE-2017-5754 (aka Meltdown / Variant 3) for the x86-64 architecture.

  • Lubuntu 17.10.1 (Artful Aardvark) released!

    Lubuntu 17.10.1 has been released to fix a major problem affecting many Lenovo laptops that causes the computer to have BIOS problems after installing. You can find more details about this problem here.

    Please note that the Meltdown and Spectre vulnerabilities have not been fixed in this ISO, so we advise that if you install this ISO, update directly after.

    This release is no different in terms of features from the 17.10 release, and is comparable to an LTS point release in that all updates since the 17.10 release have been rolled into this ISO. You can find the initial announcement here.

  • Check Linux for Spectre or Meltdown vulnerability

    Devices running Linux are affected by Spectre and Meltdown vulnerabilities as much as their Windows counterparts.

    Development teams work on updated kernels for the various distributions, and users need to update browsers and other software to protect data against potential attacks.

    We talked about identifying whether your Windows PC or web browser is vulnerable already. A recently published script does the same for Linux systems. You may use it to check whether your Linux distribution is vulnerable.

  • Meltdown Patch Is Causing Problems for Some Ubuntu Linux Users

    Many Ubuntu Linux users who installed the latest kernel updates to fix the Meltdown CPU vulnerability found themselves stuck in a boot loop and had to revert back to a previous version.

    The problem affected mostly Ubuntu 16.04 (Xenial Xerus), which is a long-term support (LTS) release. Soon after the 4.4.0-108 kernel update was released to fix the Meltdown vulnerability, users flooded the Ubuntu Forums and bug tracker to report booting problems.

  • Meltdown Update Kernel doesnt boot
  • Major Linux distros have Meltdown patches, but that's only part of the fix

    The Intel Meltdown security problem is the pain that just keeps hurting. Still, there is some good news. Ubuntu and Debian Linux have patched their distributions. The bad news? It's becoming clearer than ever that fixing Meltdown causes significant performance problems. Worst still, many older servers and appliances are running insecure, unpatchable Linux distributions.

A Look at Ubuntu Unity Remix

Filed under
Reviews
Ubuntu
  • Ubuntu Unity Remix Day 1: 27-Dec ISO

    Ubuntu Unity Remix 18.04 is already functional even though it's still very new. For you who don't know, Unity Remix is a new Ubuntu distro with Unity 7 desktop created after the official Ubuntu switched to GNOME 3. Unity Remix is based on the effort of Unity 7 Continuation Project by Khurshid Alam and Dale Beaudoin, and it calls for developers & testers right now. Today I, an Ubuntu user who likes Unity Desktop, start a series of article about my days in personal testing Ubuntu Unity Remix. This 'Day 1' covers a short overview about the latest ISO from 27-Dec-2017. This series is (again) inspired by Didier Roche's series at early Artful days. Enjoy!

  • Ubuntu Unity Remix Day 2: Nemo & Caja

    Do you like Nemo and Caja file managers? Good news for you, you can use them at Ubuntu Unity Remix now. More good news is there are 2 ISOs available (for testing purpose) for both Unity Remix Nemo and Unity Remix Caja editions! Having these two is like continuing the 17.04 but with the feels of Linux Mint 'MATE' and 'Cinnamon' editions. For you who don't know, you will find Nemo or Caja even more useful than Nautilus, because you'll have more features you cannot find at (like normal menu bar, F3, and status bar). This 'Day 2' covers simple overview about both file managers at Ubuntu Unity Remix 18.04. Enjoy!

Ubuntu 17.04 EoL and Patches

Filed under
Security
Ubuntu

Kubuntu 17.10 upgrade - Should you?

Filed under
KDE
Ubuntu

I am not joking. I seriously believe that software regressions should be punished. They destroy people's mood and will and desire to use programs, and the users start developing almost PTSD-like effects, not knowing when something is going to crash because no one bothered checking their fresh code. Jail time seems appropriate. Failing that, strict and rigorous validation procedures that currently DO NOT EXIST in the wider Linux world.

Zesty remains the perfect distro and the best Plasma release ever. It's so much ahead, I feel like shedding a tear every time I use it. In comparison, Awful Anteater is a pale shadow of what Kubuntu can do. So yes it works. But it brings crashes and unnecessary nonsense that just spoils everything. It's such a shame, and such a wasted opportunity. The upgrade itself was flawless. But it's not an upgrade. It's a version increase and a definite downgrade. Wait for the LTS. Or something. Oh, the humanity!

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More in Tux Machines

GNOME: GNOME Shell, Bug Tracking, GXml

  • How to Install GNOME Shell Extensions GUI / CLI
    GNOME Shell extensions are small and lightweight pieces of codes that enhance GNOME desktop’s functionality and improves the user experience. They are the equivalent of add-ons in your browser. For instance, you can have add-ons that download videos like IDM downloader or block annoying ads such as Adblocker. Similarly, GNOME extensions perform certain tasks e.g. Display weather and geolocation. One of the tools used to install and customize GNOME Shell extensions is the GNOME tweak tool. It comes pre-installed in the latest Linux distributions. This article we cover how to install GNOME Shell extensions from GUI and from the command line on various Linux distros.
  • Musings on bug trackers
    I love bugzilla, I really do. I’ve used it nearly my entire career in free software. I know it well, I like the command line tool integration. But I’ve never had a day in bugzilla where I managed to resolve/triage/close nearly 100 issues. I managed to do that today with our gitlab instance and I didn’t even mean to.
  • ABI stability for GXml
    I’m taking a deep travel across Vala code; trying to figure out how things work. With my resent work on abstract methods for compact classes, may I have an idea on how to provide ABI stability to GXml. GXml have lot of interfaces for DOM4, implemented in classes, like Gom* series. But they are a lot, so go for each and add annotations, like Gee did, to improve ABI, is a hard work.

More on Barcelona Moving to Free Software

  • Barcelona Aims To Oust Microsoft In Open Source Drive
    The city of Barcelona has embarked on an ambitious open source effort aimed at reducing its dependence on large proprietary software vendors such as Microsoft, including the replacement of both applications and operating systems.
  • Barcelona to ditch Microsoft software for open source software
    Barcelona, one of the most popular cities in the Europe is now switching to open-source software by replacing Microsoft Windows, Office and Exchange with Linux, Libre Office and Open Xchange respectively. The city council is already piloting the use of Ubuntu Linux desktops along with Mozilla Firefox as the default browser. With this move, Barcelona city is planning to save money over the years by reducing software/service licensing fees. They are also planning to hire new developers to write open-source software. The open-source product will also be made available to other Spanish municipalities and public bodies further afield allowing them the opportunity to save money on software licences.
  • Barcelona to ditch Microsoft in favour of open source Linux software
    Catalan capital Barcelona is planning to ditch proprietary software products from Microsoft in favour of free, open source alternatives such as Open-Xchange email. That’s according to a report by Spain's national paper El Pais, which reports that Barcelona plans to invest 70% of its annual software budget in open source this year.

OSS Leftovers

  • Open Source turns 20
    While open source software is ubiquitous, recognized across industries as a fundamental infrastructure component as well as a critical factor for driving innovation, the "open source" label was coined only 20 years ago. The concept of open source software - as opposed to free software or freeware - is credited to Netscape which, in January 1998, announced plans to release the source code of its proprietary browser, Navigator, under a license that would freely permit modification and redistribution. This code is today the basis for Mozilla Firefox and Thunderbird. The Open Source Initiative (OSI) regards that event as the point at which "software freedom extended its reach beyond the enthusiast community and began its ascent into the mainstream".
  • Coreboot 4.7 Released With 47 More Motherboards Supported, AMD Stoney Ridge
    Coreboot 4.7 is now available as the latest release of this free and open-source BIOS/UEFI replacement. Coreboot 4.7 is the latest tagged release for this project developed via Git. This release has initial support for AMD Stoney Ridge platforms, Intel ICH10 Southbridge support, Intel Denverton/Denverton-NS platform support, and initial work on supporting next-gen Intel Cannonlake platforms.
  • Thank you CUSEC!
    Last week, I spoke at CUSEC (Canadian Undergraduate Software Engineering Conference) in Montreal.   I really enjoy speaking with students and learning what they are working on.  They are the future of our industry!  I was so impressed by the level of organization and the kindness and thoughtfulness of the CUSEC organizing committee who were all students from various universities across Canada. I hope that you all are enjoying some much needed rest after your tremendous work in the months approaching the conference and last week.
  • Percona Announces Sneak Peek of Conference Breakout Sessions for Seventh Annual Percona Live Open Source Database Conference
  • The Universal Donor
    A few people reacted negatively to my article on why Public Domain software is broadly unsuitable for inclusion in a community open source project. Most argued that because public domain gave them the rights they need where they live (mostly the USA), I should not say it was wrong to use it. That demonstrates either parochialism or a misunderstanding of what public domain really means. It should not be used for the same reason code known to be subject to software patents should not be used — namely that only code that, to the best efforts possible, can be used by anyone, anywhere without the need to ask permission (e.g. by buying a patent license) or check it it’s needed (e.g. is that PD code PD here?) can be used in an open source project. Public domain fails the test for multiple reasons: global differences in copyright term, copyright as an unalienable moral rather than as a property right, and more. Yes, public domain may give you the rights you need. But in an open source project, it’s not enough for you to determine you personally have the rights you need. In order to function, every user and contributor of the project needs prior confidence they can use, improve and share the code, regardless of their location or the use to which they put it. That confidence also has to extend to their colleagues, customers and community as well.

Ubuntu: Ubuntu Core, Ubuntu Free Culture Showcase for 18.04, Lubuntu 17.04 EoL

  • Ubuntu Core: A secure open source OS for IoT
    Canonical's Ubuntu Core, a tiny, transactional version of the Ubuntu Linux OS for IoT devices, runs highly secure Linux application packages, known as "snaps," that can be upgraded remotely.
  • Introducing the Ubuntu Free Culture Showcase for 18.04
    Ubuntu’s changed a lot in the last year, and everything is leading up to a really exciting event: the release of 18.04 LTS! This next version of Ubuntu will once again offer a stable foundation for countless humans who use computers for work, play, art, relaxation, and creation. Among the various visual refreshes of Ubuntu, it’s also time to go to the community and ask for the best wallpapers. And it’s also time to look for a new video and music file that will be waiting for Ubuntu users on the install media’s Examples folder, to reassure them that their video and sound drivers are quite operational. Long-term support releases like Ubuntu 18.04 LTS are very important, because they are downloaded and installed ten times more often than every single interim release combined. That means that the wallpapers, video, and music that are shipped will be seen ten times more than in other releases. So artists, select your best works. Ubuntu enthusiasts, spread the word about the contest as far and wide as you can. Everyone can help make this next LTS version of Ubuntu an amazing success.
  • Lubuntu 17.04 has reached End of Life
    The Lubuntu Team announces that as a non-LTS release, 17.04 has a 9-month support cycle and, as such, reached end of life on Saturday, January 13, 2018. Lubuntu will no longer provide bug fixes or security updates for 17.04, and we strongly recommend that you update to 17.10, which continues to be actively supported with security updates and select high-impact bug fixes.