• 30 years Linux - my personal retrospect

    calendar Aug 25, 2021 · 10 min read  ·
    Share on: linkedin copy
    30 years ago today, a Finnish student presented a project in the then still very prominent Usenet. It was Linus Torvalds and the talk was about a small UNIX-like operating system which ran mainly on cheap 386/486 AT clones. Linus was interested in UNIX, but like most students and hobbyists at the time, could not afford …
    Read More

  • Keychron K8 - cheap hotswap keyboard

    calendar May 11, 2021 · 6 min read · mechanical-keyboard  ·
    Share on: linkedin copy

    After more than one year of collective home office I was looking for a keyboard that as silent as possible but still allows unresting typing. As a mechanical keyboard enthusiast, conventional rubberdome keyboards were not an option. Luckily, there are plenty of options available.

    The range of mechanical keyboards is …


    Read More

  • Oracle Linux Manager 2.10: First impressions

    calendar May 5, 2021 · 6 min read  ·
    Share on: linkedin copy

    Nach der Einstellung des Spacewalk-Projekts durch Red Hat im Mai 2020 entschied sich neben SUSE auch Oracle für einen Fork der quelloffenen System Management-Software.

    <img
  loading="lazy"
  decoding="async"
  alt="Overview" …</picture></figure></p>

    Read More

  • Short tip: Java applications and HiDPI

    calendar May 2, 2021 · 1 min read · kurztipp  ·
    Share on: linkedin copy

    Legacy software is often used longer than planned. Running older Java software on high-resolution displays with more than 1080p is quite hard by default.

    To fix this, manually setting scaling via command-line pararameters is sufficient:

    1$ java -Dsun.java2d.uiScale=3.5 -jar app.jar

    In this case, 3.5x or 350% scaling is …


    Read More

  • Volla Phone: Android privacy phone without Google

    calendar Mar 18, 2021 · 8 min read  ·
    Share on: linkedin copy

    With more than 60% market share Android devices are dominating the smartphone market for a long time. But the most devices have one in common: a nosy operating system that likes to experience as much as possible about the user.

    Hallo Welt Systeme UG - a german startup from Remscheid - aims to change this. With the …


    Read More

  • New year, new PC - based on AMD Ryzen

    calendar Feb 21, 2021 · 4 min read · popos  ·
    Share on: linkedin copy
    After roughly 8 years it was time to upgrade my desktop computer. Even though I already upgraded the graphic card two times in the mean time, processor and memory resources reached their limits. Especially computing intensive tasks and newer video games were slowd down. Fortunately, things have changed a lot in the …
    Read More

  • Open Source Automation Days 2020 - Virtual Diversity

    calendar Dec 1, 2020 · 9 min read · conference  ·
    Share on: linkedin copy

    2020 is not only the product of a fivefold 404 but also the big year of online conferences. While conferences were previously held in particularly conspicuous or unusual locations and invited people to join the physical network, this year online platforms in particular serve as a necessary compromise.

    One of the …


    Read More

  • Short tip: Convert SLES4SAP 12 to SLES 12

    calendar Nov 11, 2020 · 2 min read · kurztipp sles  ·
    Share on: linkedin copy

    While there are scripts for migrating SLES to SLES4SAP, there are no tools the other way around. If you deployed the wrong template by mistake you can change the product without reinstallation with some manual steps. A comparable procedure has also been documented by the vendor for installing SUSE Manager.

    First of …


    Read More

  • Raspberry Pi 4: Boot Ubuntu 20.04 via USB

    calendar Oct 28, 2020 · 3 min read · raspberry-pi ubuntu  ·
    Share on: linkedin copy

    For some time, the Raspberry Pi 4 also supports booting via USB to circumvent buggy SD card system media. Back in May, this feature was supplied as beta, since September it is considered as stable functionality.

    Booting Raspberry Pi OS (former Raspbian) via USB works out of the box, but additional steps are required …


    Read More

  • Canonical Landscape: Test and first impressions

    calendar Sep 28, 2020 · 14 min read · ubuntu landscape  ·
    Share on: linkedin copy

    Back in 2007, Canonical Landscape -  a tool for managing Ubuntu systems - was introduced. So beside already popular tools such as Uyuni and Foreman there is yet another software with comparable features. How useful is it?

    Expectations

    I've never used Landscape. The reason for this is that I usually work with Red …


    Read More