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October 2018

today's leftovers

Filed under
Misc
  • The AMD Threadripper ECC DDR4-2666 Testing That Wasn't

    Recently in our forums there has been a lot of interest in Threadripper 2 builds using ECC DDR4 memory and the impact on performance, especially now with the Threadripper 2 family being rounded out by the 2920X and 2970WX. So I set out to do some DDR4-2666 ECC UDIMM testing with Threadripper 2, but that hasn't turned out well.

  • Representing KDE at XDC 2018

    Last month the X.Org Developer?s Conference (XDC) was held in A Coru�a, Spain. I took part as a Plasma/KWin developer. My main goal was to simply get into contact with developers from other projects and companies working on open source technology in order to show them that the KDE community aims at being a reliable partner to them now and in the future.

    Instead of recounting chronologically what went down at the conference let us look at three key groups of attendees, who are relevant to KWin and Plasma: the graphics drivers and kernel developers, upstream userland and colleagues working on other compositor projects.

  • Chris Lamb: Free software activities in October 2018

    We intend to maintain changes to these modules under their original open source licenses and applying only free and open fixes and updates. You can find out more at goodformcode.com.

OSS: Openwashing, FUD, Open Hardware, Open Source as a Model for Global Education and More

Filed under
OSS
  • It's not okay to pretend your software is open source

    One of my largest complaints with the Commons Clause is that it hijacks language used by open source projects to proliferate nonfree software, and encourages software using it to do the same. Instead of being a new software license, it tries to stick itself onto other respected licences - often the Apache 2.0 license. The name, “Commons Clause”, is also disingenuous, hijacking language used by respected entities like Creative Commons. In truth, the Commons Clause serves to remove software from the commons1. Combining these problems gives you language like “Apache+Commons Clause”, which is easily confused with Apache Commons.

  • No Free Lunches In Software: Understanding Open Source Code Use In Your Business [Ed: We're back to the 1990s? Far too much FUD like this from Forbes about FOSS, now without the paywall/spywall.]
  • Nybble open source robotic kitten

    Those of you looking to learn a little more about robotics and electronics in general may be interested in a new open source robotic kit called Nybble. Which allows you to build the “world’s cutest open source robotic kitten”. Watch the demonstration video below to learn more about the robotic kit which can be easily programmed and is now available to back via Indiegogo with early bird pledges available from $200.

  • Open Source as a Model for Global Education

    While education leaders may be appalled by the closed-border policies coming out of Washington, they often indulge in similar protectionist rhetoric, as highlighted by a recent Wilson Center report.
    The language of “national competitiveness” is common in higher education, especially in discussions of China and the U.S. You hear it in contradictory concerns about too many international students (they will take scarce places at elite institutions! They will steal intellectual property!) and too few (our institutions won't keep up if they stop sending students! We need their tuition to stay afloat!).
    What these worries have in common is the false premise that education is a race and if we don't hurry others will beat us.
    Whereas education competition borrows from the language of economics, an earlier model of educational transfer drew on culture and politics. Transfer was based on importing and exporting from one education system to another. In the 19th and early 20th centuries, American missionaries established colleges across the Middle East and Asia. Philanthropists established international academic exchanges like the Rhodes Scholarship.

  • Chrome OS 70 Brings Better Tablet Mode to Chromebooks, Here’s What’s New

    2-in-1 Chromebooks have existed for a few years now, and have become more and more popular as Chromebooks gained support for touch-based Android apps. But, using a convertible Chromebook just wasn’t as smooth as using a tablet. Part of this was the fact that you’re still holding a laptop, but the bigger part was the user interface.

    Now, both of those problems are effectively solved. Chrome tablets and detachables are available and with Chrome OS 70, there’s a much more touch-friendly user interface.

  • 8x8 buys Jitsi open source video conferencing from Atlassian

    8x8 has acquired the open source video conferencing company Jitsi from Atlassian in the cloud telephony vendor's latest move to expand its business communications portfolio.

    Jitsi hosts an open source video conferencing server that developers can use to build WebRTC-based video products. It also runs a free platform for online meetings that developers can embed into their websites or mobile apps using Jitsi's APIs and SDKs.

Reports on ActiveState Developer Survey/DigitalOcean’s 'CURRENTS A Seasonal Report on Developer Trends in the Cloud: Open Source Edition'

Filed under
Development
  • ActiveState Developer Survey Examines Open Source Challenges
  • Report: Developers are not clear on how to get involved in the open-source community

    After 20 years, the open-source community is stronger than ever. However, a recent report found developers while they had more time and know-how to contribute to open-source projects. According the report, respondents don’t quite know where to begin and start to question their skills and time.

    Additionally, developers say they are either too intimidated to contribute, lack the resources, or do not get enough time to contribute from their company.

    DigitalOcean’s CURRENTS A Seasonal Report on Developer Trends in the Cloud: Open Source Edition is based off of more than 4,300 international developers, and focuses specifically on how companies are using open source and why they support the community.

  • Developers: Want fulfilling work? Here are the 10 most satisfying coding languages

    Developers choose a programming language for a project based on a number of factors, including what components that project needs, and what languages they are most comfortable with. However, developers are much more satisfied working in some languages than others, according to a Tuesday report from ActiveState.

    Adding a new programming language to the workplace was ranked as the largest challenge for developers, with 56% ranking this difficult or very difficult, the report found. This was followed by dependencies (24%), environmental configuration (20%), and reproducible builds (18%).

  • The 10 most popular platforms developers use to code projects

    On a typical day, the largest portion of developers (37%) spend only 2-4 hours programming, according to a Tuesday report from ActiveState. Of the 1,400 developers and IT professionals surveyed, 14% said they spend one hour per day programming, 31% spend 5-7 hours, and 19% spend 8+ hours doing coding work daily.

    When starting new software projects, 26% of developers surveyed said they start a new project quarterly, the report found. Another 23% start new projects monthly, while 17% said rarely. Fewer in the field said they begin a new software project twice a year (14%), weekly (12%), annually (7%), or daily (1%), according to the report.

BSD: Review of 'Absolute FreeBSD', Introducing the OpenBSD Virtualization FAQ

Filed under
BSD
  • Book Review: Absolute FreeBSD (3rd Edition)

    FreeBSD is a free and open source operating system for many different kinds of computers. FreeBSD's based upon BSD, the version of UNIX developed at the University of California, Berkeley. FreeBSD is an alternative to Linux or Windows-based system. You can run almost all apps written in Perl, Python, PHP and other programming languages. FreeBSD heavily used by Netflix, EMC, IBM, Juniper, NetApp, Apple, Sony, and others. Absolute FreeBSD (3rd ed) book aims to be the complete guide to FreeBSD. Let us see why Michael W. Lucas' FreeBSD system administration books so favorite among Unix lovers.

  • Introducing the OpenBSD Virtualization FAQ

    Now getting started with OpenBSD virtualization has become even easier: The OpenBSD FAQ has a new Virtualization section, written mainly by Solene Rapenne (solene@) and added to the site in this commit, that offers an introduction to the concepts as well as instructions on how to get started with vmm(4).

GNU: New RMS Interview by Rob Lucas, RMS Biography, GNU Spotlight and GNU Bash

Filed under
GNU
  • "Every non-free program is an injustice": Richard Stallman on the Free Software Movement

    In the September–October 2018 issue of the New Left Review, Rob Lucas interviews software engineer and free-software advocate Richard Stallman, who is best known for spearheading the development of the GNU/Linux operating system in the 1980s. Stallman began his career at the MIT Artificial Intelligence Lab in the 1970s, which at the time was animated by a spirit of open collaboration and creative exploration. But when the lab began to develop proprietary software and partner with telecommunications companies, Stallman saw the “injustice” of non-free software and struck out on his own.

  • RICHARD STALLMAN TALKING TO THE MAILMAN: Interview by Rob Lucas

    I grew up in Manhattan, born in 1953. I was a behavioural problem—I couldn’t go to a public school without getting in trouble—and started working with computers at an early age. In 1969, during my last year of high school, an IBM lab let me come and use their computers. In 1970 I had a summer job there. They gave me a project to do, implementing a certain algorithm to see how well it would work. I finished that in a few weeks, so they let me spend the rest of the summer being paid to write whatever I felt like. I went to Harvard to study physics, and carried on programming there. Towards the end of my first year I started visiting computer labs to look at their manuals, to see how the computers differed. When I visited the Artificial Intelligence Lab at MIT, they didn’t have much by way of a manual, because they had developed their own time-sharing system. The administrator there decided to hire me more or less straight away. So although I graduated from Harvard in 1974, I had actually been an employee at MIT for three years. Harvard’s computer was a lot better to play with than IBM’s, but it didn’t have a lot of memory, whereas MIT’s computer at the AI Lab had plenty. Not only that, they let me change the time-sharing system; in fact, that was my job—they hired me to work on that system. I added lots of features to lots of different programs—whatever I thought of, or people suggested to me, that seemed like a good idea, I would implement and then people would use it. And this was absolutely delightful—and gratifying to make things that people used and appreciated—so I kept working there. From that point on, I did programming using the machine at MIT.

  • Innovative biography of RMS returns to GNU Press Shop

    In 2002, Sam Williams wrote Free as in Freedom, a biography of Richard M. Stallman. In its epilogue, Williams expressed hope that choosing to distribute his book under the GNU Free Documentation License would enable and encourage others to share corrections and their own perspectives through modifications to his work.

    Free as in Freedom (2.0) is Stallman's revision of the original biography. While preserving Williams's viewpoint, it includes factual corrections and extensive new commentary by Stallman, as well as new prefaces by both authors written for the occasion. It is a rare kind of biography, where the reader has the benefit of both the biographer's original words and the subject's response.

  • GNU Spotlight with Mike Gerwitz: 8 new GNU releases!

    gama-2.01
    gcc-6.5.0
    gvpe-3.1
    help2man-1.47.8
    mes-0.18
    mtools-4.0.19
    parallel-20181022
    units-2.18

    For announcements of most new GNU releases, subscribe to the info-gnu mailing list: https://lists.gnu.org/mailman/listinfo/info-gnu.

    To download: nearly all GNU software is available from https://ftp.gnu.org/gnu/, or preferably one of its mirrors from https://www.gnu.org/prep/ftp.html. You can use the URL https://ftpmirror.gnu.org/ to be automatically redirected to a (hopefully) nearby and up-to-date mirror.

  • Normalizing Filenames and Data with [GNU] Bash

    Yeah, that many years. Almost 13 years of writing about shell scripts and lightweight programming within the Linux environment. I've covered a lot of ground, but I want to go back to something that's fairly basic and talk about filenames and the web.

    It used to be that if you had filenames that had spaces in them, bad things would happen: "my mom's cookies.html" was a recipe for disaster, not good cookies—um, and not those sorts of web cookies either!

    As the web evolved, however, encoding of special characters became the norm, and every Web browser had to be able to manage it, for better or worse. So spaces became either "+" or %20 sequences, and everything else that wasn't a regular alphanumeric character was replaced by its hex ASCII equivalent.

Kernel: Cedrus, EXT4, Linux in Android

Filed under
Linux
  • Cedrus VPU Decoder Driver Being Mainlined With New Linux Media Request API

    The Cedrus VPU driver developed by Bootlin for supporting the Allwinner VPU open-source support via crowdfunding is set to hit the mainline kernel for Linux 4.20~5.0.

    The Cedrus VPU driver is what was developed over six months this year at Bootlin via a crowd-funded internship that raised over thirty-six thousand dollars (USD) for the effort.

  • EXT4 Getting Fixes For A Number Of Ancient Bugs -- Back To The Linux 2.6 Days With EXT3

    While investigating EXT4 resize troubles on RHEL6/RHEL7 boxes with OpenVZ kernels, Vasily Averin uncovered several bugs within the EXT4 code. The oldest of which bugs date back to the Linux 2.6.19 kernel in the EXT3 code that was imported when creating the EXT4 file-system.

  • Episode 5: Linux is Personal

    Doc Searls and Katherine Druckman talk to Corbin Champion about Userland, an easy way to run Linux on your Android device, and other new projects.

Security: Podman, Microsoft and Updates

Filed under
Security

Braiins OS Is The First Fully Open Source, Linux-based Bitcoin Mining System

Filed under
OS
GNU
Linux

Braiins Systems, the company behind the Slush Pool, has announced Braiins OS. The creators of this bitcoin mining software have claimed that it’s the world’s first fully open source system for cryptocurrency embedded devices.

The initial release of the operating system is based on OpenWrt, which is basically a Linux operating system for embedded devices. You can find its code here.

Those who know about OpenWrt must be aware of the fact that it’s very versatile. As a result, Braiins OS can also be extended in different applications in future.

In a Medium post, Braiins Systems has said that different weird cases of non-standard behavior of mining devices cause tons of issues. With this new mining software, the company wishes to make things easier for mining pool operators and miners.

Read more

Also: Linux Lite 4.2 Final Released

Linux Mint 19.1 Will Feature a ‘Modern’ Desktop Layout

Filed under
GNU
Linux
Ubuntu

We’re expecting the release of Linux Mint 19.1 to arrive just before the Christmas holidays and, like your nearest and dearest, it’ll be bringing a few surprises with it.

The Linux 19.1 release will include the Cinnamon 4.0 desktop environment by default and this, Mint’s devs say, will “look more modern” than it does not.

How? By using a new panel layout.

Read more

Programming: Rust 2018, Textile, Samsung, Apache Subversion 1.11.0 and More

Filed under
Development
  • SDL 2.0.9 Released As The Latest Version For This Cross-Platform Game Library

    SDL 2.0.9 is now available as the latest feature update to this cross-platform, widely-used library to help with abstracting operating system specific bits across operating systems and hardware from mobile devices to gaming PCs. SDL2 continues to be critically important for most Linux games.

  • AMD Publishes Zen 2 Compiler Patch "znver2" Exposing Some New Instructions

    With GCC 9 feature development ending in November, AMD today sent out their first patch enabling Zen 2 support in the GNU Compiler Collection via the new "znver2" target.

  • Help test Rust 2018

    Back in July, we talked about “Rust 2018”. In short, we are launching a cycle of long-term milestones called “Editions”. Editions are a way to capture the progress delivered incrementally by our ordinary six-week release cycle – and focus Rust libraries, tooling, and documentation cohesively around it. Editions will be selected roughly every three years: Rust 1.0 was “Rust 2015” and Rust 1.31 will be “Rust 2018”. Each edition has a theme; Rust 2015’s was “stability”, and Rust 2018’s is “productivity.”

    We’ve been testing Rust 2018 for a while already, and things are looking pretty good! We have just under six weeks until Rust 1.31 ships, and so we’d appreciate it if you could give the beta a try.

  • Textile – simple lightweight markup language

    Textile is a lightweight and simple markup language that makes it easy to structure content for articles, blogs, wikis, and documentation. It’s origin traces back to the blogging software Textpattern.

    Textile converts its marked-up text input to valid, well-formed XHTML and also inserts character entity references for apostrophes, opening and closing single and double quotation marks, ellipses and em dashes. This lets users create documents, blogs and web pages without needing to write HTML.

  • 39 No Frills Keyboard Shortcuts every Developer Should Follow

    What used to be 27 is now 39 - Due to all the great comments, I've amended the list to add a few more suggestions, thanks to all that contributed.

    Shortcuts are the most productive thing that a developer can add to their repertoire that will aid them through their entire career. Learning how to use your system and tools will improve your productivity and in general make traversing all your windows and apps a breeze. The mouse is a great, tool, but if you can do it quicker, more effectively without your hands leaving your keyboard then you should!

  • What a Coding Dojo taught me about agile

    Of course, we often associate “agile” with specific practices. Let’s take the example of two agile practices that were used together during a Coding Dojo event. A Coding Dojo is a great way of uncovering better ways of developing… I’ll stop there; you know the rest of the sentence by now. A Coding Dojo is a great way to get better at something by practicing with others in a safe and controlled environment.

  • Samsung Comments On Open-Source Restructuring

    Over the weekend we reported on the Samsung Open-Source Group reportedly shutting down with many of the former OSG staffers in the US no longer employed by Samsung. We've now received comments both from Samsung in the US and Korea on the matter.

  • Apache Subversion 1.11.0 released

    Version 1.11.0 of the Subversion source-code management system is out. Changes include improvements to the shelving feature, better resolution of merge conflicts, an experimental checkpointing feature, and more; see the release notes for details.

More in Tux Machines

Programming: Thread Synchronization, Python, C++

  • Thread Synchronization in Linux and Windows Systems, Part 1

    In modern operating systems, each process has its own address space and one thread of control. However, in practice we often face situations requiring several concurrent tasks within a single process and with access to the same process components: structures, open file descriptors, etc.

  • Intro to Black – The Uncompromising Python Code Formatter

    There are several Python code checkers available. For example, a lot of developers enjoy using Pylint or Flake8 to check their code for errors. These tools use static code analysis to check your code for bugs or naming issues. Flake8 will also check your code to see if you are adhering to PEP8, Python’s style guide.

  • Report from the February 2019 ISO C++ meeting (Library)

    Back in February, I attended the WG21 C++ standards committee meeting in rainy Kona, Hawaii (yes, it rained most of the week). This report is so late that we’re now preparing for the next meeting, which will take place mid-July in Cologne. As usual, I spent the majority of my time in the Library Working Group (for LWG; for details on the various Working Groups and Study Groups see Standard C++: The Committee). The purpose of the LWG is to formalize the specification of the C++ Standard Library, i.e. the second “half” of the C++ standard (although in terms of page count it’s closer to three quarters than half). With a new C++20 standard on the horizon, and lots of new features that people want added to the standard library, the LWG has been very busy trying to process the backlog of new proposals forwarded by the Library Evolution Working Group (LEWG). One of the main tasks at the Kona meeting was to review the “Ranges Design Cleanup” proposal. The cleanup involves a number of fixes and improvements to the new Ranges library, addressing issues that came up during the review of the previous (much larger) proposal to add the Ranges library, which is one of the biggest additions to the C++20 library (most of the other significant additions to C++20 affect the core language, without much library impact). In fact, I’d say it’s one of the biggest additions to the C++ standard library since the first standard in 1998. The Ranges library work overhauls the parts of the standard that originated in the Standard Template Library (STL), i.e. iterators, algorithms, and containers, to re-specify them in terms of C++ Concepts. This has been a multi-year effort that has now landed in the C++20 working draft, following multiple proposals and several meetings of wording review by LWG.

  • Save and load Python data with JSON

    JSON stands for JavaScript Object Notation. This format is a popular method of storing data in key-value arrangements so it can be parsed easily later. Don’t let the name fool you, though: You can use JSON in Python—not just JavaScript—as an easy way to store data, and this article demonstrates how to get started.

Android Leftovers

SysAdmin Day Sale: Get 60% off on Linux Foundation Certification & Training

To celebrate the Sysadmin day, the Linux Foundation is giving 60% off on its training courses on sysadmin, Kubernetes, Hyperledger etc. Advance your career with these certifications. Read more

Raspberry Pi 4 and Raspbian Buster: Hands-On

In my previous two posts I looked at the Raspberry Pi 4 hardware and at the procedure for installing and booting the new Raspbian Buster Operating System on the Pi 4. With those basic steps out of the way, now it's time to look at both the hardware and software in more detail. The first thing I want to mention is that when I wrote the previous post about Raspbian, I had not noticed that there is an updated version of Raspbian Buster (2019-07-10) available. This version was released sort of quietly (without the usual blog post announcing and explaining it), although there are release notes for it if you are interested. This release is extremely good news, because it fixes some of the biggest problems that I mentioned in my previous post... Read more