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Slack

LibreOffice 6.4.5 finally for Slackware 14.2

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LibO
Slack

The Document Foundation recently released version 7.0.0 of their Libre Office suite of applications. The packages for Slackware-current can be found in my repository. But the situation for Slackware 14.2 used to be different – I got stuck after LibreOffice 6.2 because the newer source releases (6.3 and onwards) require versions of system software that our stable Slackware 14.2 platform does not offer.

From time to time during the last year, when there was time and the build box was not compiling packages, I messed around with the libreoffice.SlackBuild script in futile attempts to compile recent versions of LibreOffice on Slackware 14.2. I failed all the time.
Until last week. After I had uploaded the new KDE Plasma5 packages to ‘ktown‘, I had an epiphany and decided to use a new approach. What I did was: question all the historic stuff in the SlackBuild script that got added whenever I needed to work around compilation failures; and accept that the compilation needs newer versions of software than Slackware 14.2 offers. The first statement meant that I disabled patches and variable declarations that messed with compiler and linker; and for the second statement I stuck to a single guideline: the end product, if I were able to compile a package successfully, has to run out of the box on Slackware 14.2 without the need to update any of the core Slackware packages.

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Porteus 5.0-rc2 Released: Slackware-Based Fast And Portable Linux Distro

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Linux
Slack

More than a year later, the Dev team of Porteus Linux has finally announced the second release candidate (RC-2) for its upcoming version 5.0. This means you can now try the new testing version Porteus 5.0-rc2.

For those who don’t know, Porteus is based on one of the oldest Linux distros, Slackware. It was also formerly known as Slax remix when it started as a community remix of Slax OS.

Porteus aims to provide a portable, fast, and light operating system that you can boot directly in less than 15 seconds (in the case of LXDE desktop) from CD, USB flash drive, hard drive, or other bootable storage media.

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KDE Plasma 5 August 2020 release for Slackware

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KDE
Slack

New Plasma5 packages for Slackware-current are ready for download & installation. I skipped July (holiday season) and so here is KDE-5_20.08 aka my August 2020 release. Be sure to read the upgrade instructions very carefully to prevent breakage, because starting with my June batch the goal is to remove Slackware’s ConsoleKit2 and replace it with elogind!.

It would not harm if you (re-)read my previous blog article about Plasma5, “Replacing ConsoleKit2 with elogind – first steps“. It has a lot more detail about the reasons for this move as well as guidance on using the Wayland Window Manager (as a test) instead of regular X.Org. Note that Wayland sessions still need a lot of maturing and X.Org will remain Slackware’s default choice.

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Slackel 7.3 Mate beta1

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Slack

Slackel 7.3 Mate beta1 has been released. Slackel is based on Slackware and Salix.

Includes the Linux kernel 5.4.50, Mate-1.22.1 and latest updates from Slackware's 'Current' tree.
Added support to do a real installation to an external usb stick or usb ssd or usb hard disk.

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[Slackware] Preparing to move to elogind

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Slack

Slackware community is very active nowadays, and that's for a reason. They are waiting for the big update coming to Slackware, which is the new Plasma 5 and XFCE. It has been requested for so long after -current start moving, but Pat hasn't made the change until 2020 when big basic components such as Qt5 went in and many followed up.

There were some distractions along the way, such as PAM taking some time to test (it was initially planned for a day or two in testing/), but at the end it was a smooth migration. I barely notice any changes since all the changes happening under the hood and it works well both in my MATE and Cinnamon project (basically for Cinnamon since i already have PAM installed, but not as part of the core packages. It just sit there as a requirement for Cinnamon-screensaver).

For next Plasma 5 and XFCE, there are some another changes needed for it to go smoothly and that's UPower and elogind. Slackware 14.2 up to -current is still using the old UPower which is already deprecated for some time, but since it's related to many other libraries/applications, Pat kept them until it's time to move on with the rest of the projects and i believe it's time. Newer UPower is needed by Plasma 5, XFCE, mate-power-manager 1.24 (it's still at 1.22 for now due to this constraints) and better battery support in Cinnamon.

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Plasma5 for Slackware: KDE 5_20.05. Also, new Ardour 6.0

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KDE
Slack

A new batch of Plasma5 packages for Slackware-current is available now. The KDE-5_20.05 release is also the last monthly update you’ll see from me for a while in my ‘ktown‘ repository. I expect Pat to add Plasma5 to Slackware-current, but I am done waiting and have an urgent need to dedicate my spare time to other matters. With PAM finally added to the core distro, there should no longer be a showstopper for getting rid of KDE4 and replacing it with Plasma5.

And remember, these packages will not work on Slackware 14.2. Along with adding the May batch for -current, I have removed the old (KDE 5_17.11) Plasma5 packages that were still in my ‘ktown’ repository for Slackware 14.2. They have been un-maintained for two and a half years, who knows what security issues they cause. If you really want or need Plasma5, migrate to Slackware-current please.

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Slackware Gets Cinnamon 4.6 Early Preview and Slackware-Based Plamo 7.2 Released in Japan

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Slack
  • Cinnamon 4.6 Early Preview

    Few days ago i saw that Cinnamon 4.6.0 has been released on GitHub and as usual, developers will still release a couple more releases before they mark it stable, but i have made some changes to the SlackBuild scripts and push it to master branch for those who are eager to try the new Cinnamon 4.6.x series.

    I believe this version will be used in the next Linux Mint 20 which will be released in June, but i want Slackware-Current users to try this version first Smile

  • Plamo 7.2 リリース

    従来同様、4.7Gのサイズに収まるようにDVD用は2枚組みです。他に USB メモリからインストールする用に DVD 2 枚分をまとめてひとつにした USB 用イメージがあります(_usb.iso)。

Distros: Debian, SUSE and Slackware

Filed under
GNU
Linux
Slack
  • Thorsten Alteholz: My Debian Activities in April 2020

    This month I accepted 384 packages and rejected 47. The overall number of packages that got accepted was 457.

  • Use Speedtest CLI to test your Internet Speed on Debian 10

    In order to fix problems with slow connections that lead to poor Internet access, we first want to check the Internet speed on our system. E.g. when you have switched to a new internet connection and want to make sure that you are getting what the provider offers, it is useful to check the internet speed. In this article, we will use a Linux command-line tool called speedtest-cli. It is written in Python and uses the website speedtest.net to check bandwidth by uploading and downloading data to and from your system.

  • Community Account Migration

    The authentication system behind the following services are expect to changed this month. Here is a list of services the might be affected. An email about this topic was sent out on the openSUSE Project Mailing List. More information about this topic will be updated on the Account Migration Wiki page.

    [...]

    The services using the Community Accounts will migrate step-by-step. This means that for some days you need to use the old and new credentials until the services are migrated.

  • openSUSE Tumbleweed – Review of the week 2020/19

    During this week, we managed to set a new record: the most broken Tumbleweed snapshot handed over to openQA. W whopping 9 tests out of > 220 passed, everything else failed. What a luck we have openQA, right? Nothing of that was mirrored out and sent out to users. Fur the curious ones: the issue came from an incomplete rebuild after the switch to Ruby 2.7. Still, we managed to release 6 snapshots during this week (0429, 0501, 0502, 0503, 0504 and 0506)

  • Old box, dumb code, few thousand connections, no big deal

    I wrote up a load testing tool, too. It will create any number of worker threads, each of which opens a TCP connection back to the server. Each one of those will fire a request down the pipe, wait for the response, sleep a configurable period, and then go again.

    Let's say I stand up the server and a loadgen instance on the same machine. In this case it's my nine-year-old workstation box running Slackware64. I tell the load generator to hit the server (on localhost), run 2000 workers, and wait 200 milliseconds between queries.

Chrome/Chromium 83 Beta and Chromium 81 for Slackware 14.2

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Slack
Web
Gaming
  • Chrome 83 Beta: Cross-site Scripting Protection, Improved Form Controls, and Safe Cross-origin Resource Sharing

    Unless otherwise noted, changes described below apply to the newest Chrome beta channel release for Android, Chrome OS, Linux, macOS, and Windows. Learn more about the features listed here through the provided links or from the list on ChromeStatus.com. Chrome 83 is beta as of April 16, 2020.

  • Chrome 83 Beta Rolls Out With Better Form Controls, Barcode Detection API

    Following the release of Chrome 81 earlier this month, Chrome 83 is now in beta with Google having skipped Chrome 82 due to delays / internal issues.

    Chrome 83 Beta is out today with trusted types for DOM manipulation, improved form controls that provide much nicer looking HTML input form controls by default, new origin trials, a barcode detection API is introduced as part of their shape detection API, various WebRTC improvements, and other changes.

  • Chromium 81 – and the new build process for Slackware 14.2

    Google released version 81 of their Chromium browser sources last week, after spending a lot of effort to bring security patches to the 80.x releases in the weeks before. As said before, Google is going to skip the 82 release entirely because of the staffing challenges resulting from the Corina crisis, and will jump straight to release 83 somewhere mid-May.
    I uploaded packages for chromium 81.0.4044.92 a few days ago – but those were only for Slackware-current.

    I found it impossible to compile the latest Chromium 81 code on Slackware 14.2 and I had been trying for days. Yesterday I finally succeeded after more than a week of trying since the sources were released. I can not sit behind my computer for long, but that was not too much of a setback in this particular case. I kept running into new compiler or linker errors, then I would think of a fix, set the box to compile again and had to wait for hours to see the result… and lie down in the meantime. For an entire week, I met failure upon failure.

New ISOs for Slackware Live (liveslak 1.3.5)

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Slack

I have uploaded a set of fresh Slackware Live Edition ISO images. They are based on the liveslak scripts version 1.3.5. The ISOs are variants of Slackware-current “Tue Feb 18 05:20:50 UTC 2020” with the 5.4.20 kernel but without PAM.
The PLASMA5 variant is my february release of ‘ktown‘ aka KDE-5_20.02 .

Download these ISO files preferably via rsync://slackware.nl/mirrors/slackware-live/ (or its mirror rsync://slackware.uk/people/alien-slacklive/ but allow that 24 to sync up) because that allows easy resume if you cannot download the file in one go.

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Kernel: XFS and WiMAX in Linux

  • Prepare To Re-Format If You Are Using An Older XFS Filesystem - LinuxReviews

    Linux 5.10 brings several new features to the XFS filesystem. It solves the year 2038 problem, it supports metadata checksumming and it has better metadata verification. There's also a new configuration option: CONFIG_XFS_SUPPORT_V4. Older XFS filesystems using the v4 layout are now deprecated and there is no upgrade path beyond "backup and re-format". The Linux kernel will support older XFS v4 filesystems by default until 2025 and optional support will remain available until 2030. A new CONFIG_XFS_SUPPORT_V4 option in Linux 5.10. In case you want to.. still be able to mount existing XFS filesystems if/when you upgrade to Linux 5.10. We previously reported that XFS patches for Linux 5.10 delay the 2038 problem to 2486. That's not the only new feature Linux 5.10 brings to the XFS filesystem when it is released early December: It supports metadata checksumming, it has better built-in metadata verification and there is a new CONFIG_XFS_SUPPORT_V4 configuration option. Make sure you don't accidentally say N to that one if you have an older XFS filesystem you'd like to keep using if/when you upgrade your kernel.

  • The Linux Kernel Looks To Eventually Drop Support For WiMAX

    With the WiMAX 802.16 standard not being widely used outside of the Aeronautical Mobile Airport Communication System (AeroMACS) and usage in some developing nations, the Linux kernel may end up dropping its support for WiMAX but first there is a proposal to demote it to staging while seeing if any users remain. Longtime kernel developer Arnd Bergmann is proposing that the WiMAX Linux kernel infrastructure and the lone Intel 2400m driver be demoted from the networking subsystem to staging. In a future kernel release, the WiMAX support would be removed entirely if no active users are expressed. The Linux kernel WiMAX infrastructure is just used by the Intel 2400m driver for hardware with Sandy Bridge and prior, thus of limited relevance these days. That Intel WiMAX implementation doesn't support the frequencies that AeroMACS operates at and there are no other large known WiMAX deployments around the world making use of the frequencies supported by the 2400m implementation or users otherwise of this Linux kernel code.

  • Linux Is Dropping WiMAX Support - LinuxReviews

    It's no loss. There is a reason why you have probably never seen a WiMAX device or heard of it, WiMAX was a wireless last-mile Internet solution mostly used in a few rural areas in a limited number of countries between 2005 and 2010. There is very little use for it today so it is almost natural that Linux is phasing out support for WiMAX and the one WiMAX device it supports. WiMAX is a wireless protocol, much like IP by Avian Carriers except that it has less bandwidth and significantly lower latency. WiMAX (Worldwide Interoperability for Microwave Access) is a set of wireless standards that were used to provide last-mile Internet connectivity where DSL and other solutions were unavailable. WiMAX can work over long distances (up to 50 km), something WiFi can't. The initial design could provide around 25 megabit/s downstream, which was competitive when WiMAX base-stations and modems become widely available around 2005. That changed around 2010 when 4G/LTE become widely available. The WiMAX Forum, who maintains the WiMAX standard, tried staying relevant with a updated standard called WiMAX 2 in 2011. Some equipment for it was made, but it never became a thing. WiMAX was pretty much dead by the time WiMAX 2 arrived. The standard NetworkManager utility GNU/Linux distributions come with supported WiMAX until 2015. The Linux kernel still supports it and exactly one WiMAX device from Intel as of Linux 5.9, but that's about to change.

Fedora Elections and IBM/Red Hat Leftovers

  • Fedora 33 elections nominations now open

    Candidates may self-nominate. If you nominate someone else, please check with them to ensure that they are willing to be nominated before submitting their name. The steering bodies are currently selecting interview questions for the candidates. Nominees submit their questionnaire answers via a private Pagure issue. The Election Wrangler or their backup will publish the interviews to the Community Blog before the start of the voting period. Fedora Podcast episodes will be recorded and published as well. Please note that the interview is mandatory for all nominees. Nominees not having their interview ready by end of the Interview period (2020-11-19) will be disqualified and removed from the election.

  • 12 Tips for a migration and modernization project

    Sometimes migration/modernization projects are hard to execute because there are many technical challenges, like the structure of legacy code, customer environment, customer bureaucracy, network issues, and the most feared of all, production bugs. In this post I'm going to explain the 12-step migration / modernization procedure I follow as a consultant using a tip-based approach. I have some experience with this kind of situation because I’ve already passed by different kinds of projects with several kinds of problems. Over time you start to recognize patterns and get used to solving the hard problems. So, I thought: Wouldn't it be cool to create a procedure based on my experience, so that I can organize my daily work and give the transparency that the customers and managers want? To test this out, I did this for one customer in my hometown. They were facing a Red Hat JBoss EAP migration/modernization project. The results of the project were outstanding. The customer said they were even more satisfied with the transparency. The project manager seemed really comfortable knowing all about the details through the project and pleased with reducing the risk of unexpected news.

  • Awards roll call: June 2020 to October 2020

    We are nearly at the end of 2020 and while the pace continues to increase, we want to take a moment to acknowledge and celebrate some of the successes of Red Hat's people and their work. In the last four months, several Red Hatters and Red Hat products are being recognized by leading industry publications and organizations for efforts in driving innovation.

  • How developers can build the next generation of AI advertising technology – IBM Developer

    As we look across the most rapidly transforming industries like financial services, healthcare, retail – and now advertising, developers are putting open source technologies to work to deliver next-generation features. Our enterprise clients are looking for AI solutions that will scale with trust and transparency to solve business problems. At IBM®, I have the pleasure of focusing on equipping you, the developers, with the capabilities you need to meet the heightened expectations you face at work each day. We’re empowering open source developers to drive the critical transformation to AI in advertising. For instance, at the IBM Center for Open source Data and AI Technologies (CODAIT), enterprise developers can find open source starting points to tackle some of your thorniest challenges. We’re making it easy for developers to use and create open source AI models that can ultimately help brand marketers go deeper with AI to reach consumers more effectively.

Programming: Qt, PHP, JS and Bash

  • Qt 6 To Ship With Package Manager For Extra Libraries - Phoronix

    Adding to the list of changes coming with the Qt 6 toolkit, The Qt Company has now outlined their initial implementation of a package manager to provide additional Qt6 modules.

  • Qt for MCUs 1.5 released

    A new release of Qt for MCUs is now available in the Qt Installer. If you are new to Qt for MCUs, you can try it out here. Version 1.5 introduces new platform APIs for easy integration of Qt for MCUs on any microcontroller, along with an in-depth porting guide to get you going. Additionally, it includes a set of C++ APIs to load new images at runtime into your QML GUI. As with every release, 1.5 also includes API improvements and bug fixes, enhancing usability and stability.

  • KDDockWidgets v1.1 has been released! - KDAB - KDAB on Qt

    KDDockWidgets v1.1 is now available! Although I just wrote about v1.0 last month, the 1.1 release still managed to get a few big features.

  • KDAB TV celebrates its first year - KDAB

    A year ago KDAB started a YouTube channel dedicated to software development with Qt, C++ and 3D technologies like OpenGL. We talked to Sabine Faure, who is in charge of the program, about how it worked out so far and what we can expect in the future.

  • How to build a responsive contact form with PHP – Linux Hint

    Contact forms are commonly used in web applications because they allow the visitors of the website to communicate with the owner of the website. For most websites, responsive contact forms can be easily accessed from various types of devices such as desktops, laptops, tablets, and mobile phones. In this tutorial, a responsive contact form is implemented, and the submitted data is sent as an email using PHP.

  • Applying JavaScript’s setTimeout Method

    With the evolution of the internet, JavaScript has grown in popularity as a programming language due to its many useful methods. For example, many websites use JavaScript’s built-in setTimeout method to delay tasks. The setTimeout method has many use cases, and it can be used for animations, notifications, and functional execution delays.Because JavaScript is a single-threaded, translative language, we can perform only one task at a time. However, by using call stacks, we can delay the execution of code using the setTimeout method. In this article, we are going to introduce the setTimeout method and discuss how we can use it to improve our code.

  • Removing Characters from String in Bash – Linux Hint

    At times, you may need to remove characters from a string. Whatever the reason is, Linux provides you with various built-in, handy tools that allow you to remove characters from a string in Bash. This article shows you how to use those tools to remove characters from a string. [...] Sed is a powerful and handy utility used for editing streams of text. It is a non-interactive text editor that allows you to perform basic text manipulations on input streams. You can also use sed to remove unwanted characters from strings. For demonstration purposes, we will use a sample string and then pipe it to the sed command.

Python Programming

  • Dissecting a Web stack - The Digital Cat

    Having recently worked with young web developers who were exposed for the first time to proper production infrastructure, I received many questions about the various components that one can find in the architecture of a "Web service". These questions clearly expressed the confusion (and sometimes the frustration) of developers who understand how to create endpoints in a high-level language such as Node.js or Python, but were never introduced to the complexity of what happens between the user's browser and their framework of choice. Most of the times they don't know why the framework itself is there in the first place. The challenge is clear if we just list (in random order), some of the words we use when we discuss (Python) Web development: HTTP, cookies, web server, Websockets, FTP, multi-threaded, reverse proxy, Django, nginx, static files, POST, certificates, framework, Flask, SSL, GET, WSGI, session management, TLS, load balancing, Apache. In this post, I want to review all the words mentioned above (and a couple more) trying to build a production-ready web service from the ground up. I hope this might help young developers to get the whole picture and to make sense of these "obscure" names that senior developers like me tend to drop in everyday conversations (sometimes arguably out of turn). As the focus of the post is the global architecture and the reasons behind the presence of specific components, the example service I will use will be a basic HTML web page. The reference language will be Python but the overall discussion applies to any language or framework. My approach will be that of first stating the rationale and then implementing a possible solution. After this, I will point out missing pieces or unresolved issues and move on with the next layer. At the end of the process, the reader should have a clear picture of why each component has been added to the system.

  • Introducing AutoScraper: A Smart, Fast and Lightweight Web Scraper For Python | Codementor

    In the last few years, web scraping has been one of my day to day and frequently needed tasks. I was wondering if I can make it smart and automatic to save lots of time. So I made AutoScraper!

  • django-render-block 0.8 (and 0.8.1) released!

    A couple of weeks ago I released version 0.8 of django-render-block, this was followed up with a 0.8.1 to fix a regression. django-render-block is a small library that allows you render a specific block from a Django (or Jinja) template, this is frequently used for emails when you want multiple pieces of an email together in a single template (e.g. the subject, HTML body, and text body), but they need to be rendered separately before sending.

  • Pyston v2: 20% faster Python | The Pyston Blog

    We’re very excited to release Pyston v2, a faster and highly compatible implementation of the Python programming language. Version 2 is 20% faster than stock Python 3.8 on our macrobenchmarks. More importantly, it is likely to be faster on your code. Pyston v2 can reduce server costs, reduce user latencies, and improve developer productivity. Pyston v2 is easy to deploy, so if you’re looking for better Python performance, we encourage you to take five minutes and try Pyston. Doing so is one of the easiest ways to speed up your project.

  • Pyston v2 Released As ~20% Faster Than Python 3.8 - Phoronix

    Version 2.0 of Pyston is now available, the Python implementation originally started by Dropbox that builds on LLVM JIT for offering faster Python performance. Pyston developers believe their new release is about 20% faster than the standard Python 3.8 and should be faster for most Python code-bases.

  • Python int to string – Linux Hint

    Python is one of the universal languages that support various types of data types like integer, decimal point number, string, and complex number. We can convert one type of data type to another data type in Python. This data type conversion process is called typecasting. In Python, an integer value can easily be converted into a string by using the str() function. The str() function takes the integer value as a parameter and converts it into the string. The conversion of int to string is not only limited to the str() function. There are various other means of int to string conversion. This article explains the int to string conversion with various methods.

  • Python isinstance() Function – Linux Hint

    Python is one of the best and efficient high-level programming languages. It has a very straightforward and simple syntax. It has very built-in modules and functions that help us to perform the basic tasks efficiently. The Python isinstance() function evaluates either the given object is an instance of the specified class or not.