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Linux

Leftovers: Kernel

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Linux

Linux for Astronomers

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GNU
Linux
SciFi

I've looked at specialty distributions that were created for engineers and biologists in previous articles, but these aren't the only scientific disciplines that have their own distributions. So in this article, I introduce a distribution created specifically for astronomers, called Distro Astro. This distribution bundles together astronomy software to help users with tasks like running observatories or planetariums, doing professional research or outreach.

From the very first moment of booting up Distro Astro, you will notice that this distribution is aimed at astronomers. The look and feel of items, from the boot splash screen to wallpapers and screensavers, have all been given an astronomical theme. Even the default wallpaper is a slideshow of Hubble images.

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New Input Drivers Coming To Linux 3.20

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Linux

There's new input drivers for Linux 3.20 and improvements to the existing input drivers with this next kernel version.

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Linux Kernel 3.18.7 Officially Released, Fixes Maximum Transfer Length for 4K Disks

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Linux

Linux Kernel 3.18 is still used in numerous distributions of GNU/Linux, despite that fact that Linus Torvalds announced the final release of Linux 3.19 kernel on February 8, 2015, so it is time to update it to version 3.18.7, which was announced by Greg Kroah-Hartman a few hours ago, on February 11.

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XFS File-System Changes For Linux 3.20 Are Quite Modest

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Linux

The XFS changes targeting the Linux 3.20 kernel have been published, but this time around the file-system work isn't particularly exciting.

The changes queued by Dave Chinner for the XFS file-system in Linux 3.20 include...

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Ubuntu-Based Exton|OS Distribution Is the First to Include Linux Kernel 3.19

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GNU
Linux

After releasing the first GNU/Linux distribution with Linux 3.18 kernel a couple of days after its launch back in December 2014, Arne Exton did it again, as he just announced today on Twitter that the his Exton|OS with MATE has been updated to version 150211 and includes a custom 3.19.0-5-exton kernel package based on the upstream Linux kernel 3.19.

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ChaletOS Distro Comes with a February 2015 Release - Screenshot Tour

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OS
GNU
Linux

Dejan Petrovic, the developer of the recently introduced ChaletOS computer operating system informed us today, February 12, that he just pushed a February 2015 release on his servers, urging users to update to it as soon as possible. The new ISO images are available for download right now (see link at the end of the article) for 32 and 64-bit PCs, bringing assorted bugfixes and improvements.

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PlayStation 3 Support Is Still Being Worked On Within The Linux Kernel

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Linux
Gaming

The PowerPC architecture updates for the Linux 3.20 kernel, including some improvements for the Sony PlayStation 3 game console.

While Sony long ago removed the "Other OS" functionality from the PlayStation 3, it seems some open-source developers are still working on the PS3 support for Linux.

Geoff Levand landed a few PS3 kernel patches for mainline Linux kernel integration via the 3.20 POWER pull request.

In terms of what these new PS3 patches allow, Geoff explained recently, "It will allow a kexec based bootloader (petitboot for example) to pre-allocate a highmem region and store things like an initrd or other large data needed to boot an OS. With some PS3 configurations the boot memory region is not large enough to fit all the boot data."

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CoreOS and the App Container Spec

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Linux

The open-source Docker application virtualization container project has become a defacto standard for applications containers over the course of the last year. But it's a defacto standard that isn't a real specification and is one that is being challenged by Linux distribution vendor CoreOS.

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Also: Containers Explained: 9 Essentials You Need To Know

TPM 2.0 Support Sent In For The Linux 3.20 Kernel

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Linux

Trusted Platform Module 2.0 (TPM 2.0) is to be supported by the Linux 3.20 kernel.

While many Linux users and free software advocates are opposed to TPM, TPM 2.0 is going to be supported by the next version of the mainline Linux kernel. Trusted Platform Module technology has already been supported by the mainline Linux kernel but TPM 2.0 breaks backward compatibility with TPM 1.2. TPM 2.0 supports many more alogirhtms, crypto primitives, root keys, and authorization differences. For those learning about TPM for the first time or are just unfamiliar with the differences to TPM 2.0, see the Wikipedia page for a basic overview and the Trusted Computing Group's TPM 2.0 FAQs.

The TPM 2.0 support for the Linux kernel is being pulled in through the security subsystem changes for the 3.20 kernel.

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More in Tux Machines

GNU/Linux Laptops for Developers

  • 5 New & Powerful Dell Linux Machines You Can Buy Right Now
    The land of powerful PCs and workstations isn’t barren anymore when we talk about Linux-powered machines; even all of the world’s top 500 supercomputers now run Linux. Dell has joined hands with Canonical Inc. to give Linux-powered machines a push in the market. They have launched five new Canonical-certified workstations running Ubuntu Linux out-of-the-box as a part of the Dell Precision series. An advantage of buying these canonical-certified machines is that the users won’t have to worry about incompatibility with Linux.
  • How to set up a Pixelbook for programming
    The beauty of Chrome OS is that most of the "state" of your system is in the cloud, attached to your Google Account, but if you have any local documents those will be gone. This is because Developer Mode basically destroys the physically secure design of Chrome OS. Now you're in Linux land, and local security is your job, not Google's. Every time you boot up now, you'll have the option to press Space bar and wipe the system again and return to the safety of vanilla Chrome OS. Press Ctrl-D to continue into the unknown.

today's leftovers

Graphics: Intel, Mesa, Wayland and Bosch

  • Intel's Mesa GLSL Shader Cache Is Speeding Up Game Load Times
    At the start of the month the Intel i965 Mesa driver finally landed its on-disk shader cache, months after the GLSL on-disk shader cache originally landed in core Mesa and wired up for the RadeonSI Gallium3D driver. While you can't play too many shader-heavy games with current Intel integrated graphics, this GLSL shader cache within Mesa 17.4-dev Git is working well for speeding up load times and does provide some frame-rate benefits in games dynamically loading shaders.
  • Bosch Has Been Developing A 3D Window Manager Using Wayland
    In what appears to be research for potential use within in-vehicle infotainment (IVI) systems, Bosch in conjunction with other organizations has been developing a 3D window manager that's built atop Wayland/Weston. Wayland is already used within automobiles for IVI purposes, etc, but this is the first we're seeing at least publicly of creating a 3D window manager around it. Harsha Manjula Mallikarjun of Bosch has talked about their work in developing a middleware framework for a 3D window manager that is making use of Wayland's Weston library, libweston. The window manager maps client buffers to 3D shapes like cubes and cylinders.
  • MESA_program_binary_formats Added To The OpenGL Registry
    Intel developers have seen their MESA_program_binary_formats extension added to the official OpenGL registry. The extension is really quite simple and just documents the unique format designator to be used by Mesa for ARB_get_program_binary/OES_get_program_binary extensions. Overnight it was merged into the OpenGL Registry.

Software: Nuclide, QEMU, Mailspring, GNOME Calendar and To Do, LibreOffice

  • Nuclide – An Open IDE for Mobile and Web Development
    It wasn’t too long ago that we wrote about an IDE that was developed by adding support for advanced debugging and development functions to Atom text editor to create Atom-IDE. We’ve got another such application for you today and it goes by the name of Nuclide. Nuclide is a free Electron-based IDE created by combining a collection of Atom’s features to provide IDE-like functions for several programming languages and technologies.
  • “Improving the performance of the qcow2 format” at KVM Forum 2017
    I was in Prague last month for the 2017 edition of the KVM Forum. There I gave a talk about some of the work that I’ve been doing this year to improve the qcow2 file format used by QEMU for storing disk images. The focus of my work is to make qcow2 faster and to reduce its memory requirements.
  • QEMU and function keys (follow-up)
    Since I posted my suggestion for QEMU a few weeks ago, I've learned a few things about QEMU. Thanks so much to the folks who contacted me via email to help me out. A brief review of my issue: I like to run FreeDOS in QEMU, on my Linux laptop. QEMU makes it really easy to boot FreeDOS or to test new installations. During our run up to the FreeDOS 1.2 release, I tested every pre-release version by installing under QEMU.
  • Mailspring Email Client is now available as a Snap app
    The Mailspring email client is now available as a Snap application on Ubuntu and other Linux distros. The part-Electron, part C++ mail app works with most major email providers, lets you add multiple accounts, has fast mail searching, and offers some advanced features, like read receipts and quick reply templates.
  • The Road to 3.28: Calendar and To Do
    It’s been a long time with no news. I guess work and masters are really getting in the way… good news is that I’ll finish masters in 2 months, and will have some free time to devote to this beloved project. “Bad” news is that, after almost 6 years, I’ll finally take some time to have a real vacation. I’ll stay 3 weeks out of the loop in February, a time where I’ll be traveling to the other side of the world, watching the sunset at the beach with my wife. Without a computer. While it’s unfortunate to the community, I think this time is necessary for my mental health – I’ve gone way too many times through the almost-burned-out state recently.
  • LIBREOFFICE MASCOT SURVEY: THE PROGRESS SO FAR
    As you’ve no doubt seen, over the last few months we’ve been looking for a LibreOffice mascot. This is just something fun for our community to use, for instance on T-shirts at events, so it doesn’t have to be ultra slick and professional – it isn’t a replacement for the official branding and logos that we use in the software, website and marketing materials. At the start, we asked for your submissions and received over 300 of them – thank you so much to everyone who contributed! Many of them were excellent, but we had to remove quite a few from the following voting round for various reasons (such as potential copyright issues, conflicts with other FOSS projects, and use of the official LibreOffice document logo). If your submission didn’t make it to the voting round, we still really appreciate your input, and we apologies if we didn’t make it clearer why some didn’t get through!