Tag Archives: linux

Canonical Launches MicroK8s » Linux Magazine


Canonical, the parent company of Ubuntu, has announced MicroK8s, a snap package of Kubernetes that supports more than 42 flavors of Linux.

MicroK8s further simplifies the deployment of Kubernetes with its small disk and memory footprint. Users can deploy Kubernetes in a few seconds. It can run on the desktop, the server, an edge cloud, or an IoT device.

Snap is a self-contained app package solution created by Canonical that competes with Flatpak, which is backed by Red Hat and Fedora. Snap offers macOS and Windows-like packages with all dependencies bundled with it. A snap package of Kubernetes means any Linux distribution that supports Snap can benefit from MicroK8s

All it takes to deploy MicroK8s is this command:

sudo snap install microk8s --classic

Canonical said in a press release the benefits of providing MicroK8s as a snap include automatic updates and well-defined security capabilities. Automatic updates ensure developers are always working from the latest upstream Kubernetes with binaries delivered directly from the source and configured in seconds.



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Pantheon Desktop Makes Linux Elementary | Reviews


By Jack M. Germain

Dec 12, 2018 12:39 PM PT

Pantheon Desktop Makes Linux Elementary

Elementary OS is an easy-to-use operating system that offers a fresh approach to running Linux.

Developers of U.S.-based Elementary OS recently released the community’s annual major update, Juno 5. What makes this distro so nontraditional is its own desktop interface, called “Pantheon.”

This desktop interface is somewhat of a hybrid, inspired by Apple’s Debian Ubuntu-based OS X. The Pantheon desktop’s design is very deliberate and extremely functional. It combines some similarities of the GNOME 3 Shell with the visual finesse of the OS X dock.

Its Ubuntu underpinnings are anchored under the hood. What you see and use on the screen gives Elementary OS a distinct look and feel. Even the software center app, which in typical Ubuntu-based distros has the same appearance as the Ubuntu package manager, is part of the community’s well-maintained software distribution system..

AppCenter is a built-in app store for downloading both free and paid apps that are specifically designed for Elementary OS. In fact, the developers seem to stretch the concept of offering “free” open source applications.

For instance, a website statement maintains that “every single app in AppCenter is open source because we firmly believe in the world-changing power of freely-licensed code and open source software.” The developers also have apps offered with a price.

What’s the catch? Ultimately, there is no catch. You can pay what you want — if you want to pay anything at all.

No-Cost Download

Keep that pay-what-you-want strategy in mind if you decide to go to the download page to get the live session/installation ISO file. You will see an e-commerce transaction window. You have to select a payment amount in order to activate the download process. Or not!

Just enter a zero in the custom payment window. You do not have to fill in any payment card information. You can download the ISO file for free.

Of course, the real benefit to open source software distribution is not the idea that you can get Linux distros — or applications from the AppCenter — for free. It’s that the developers do not have to cover costly software licenses for using open source code.

They still have legitimate research and development costs, however, as well as website hosting and maintenance expenses. So consider making payment to keep Elementary OS developers solvent, and to keep patches and improved future releases in the pipeline.

Elementary Background

Elementary OS first appeared in 2011. It introduced a fresh new look and a simplified approach to desktop management.

I was mildly impressed with early editions of the Elementary OS platform. They worked reliably and there was no learning curve. The Pantheon desktop added a pretty new face and had just enough functionality to satisfy Linux newcomers.

I wanted more system configuration options, though. I was less concerned about ease-of-use issues than eager for more power-user features.


Elementary OS' multitasking controls

Elementary OS’ multitasking controls provide a convenient alternative to the keyboard shortcuts and traditional workspace switcher applets that other Linux distros use.


Over time, Elementary OS matured into a fairly useful new desktop environment that blended some of the better characteristics of other Linux distros. Its unique, simple, clean design acquired more productivity to satisfy experienced users’ needs.

The developers learned to temper oversimplifications of the Pantheon desktop. It became less limited. More advanced Linux users, however, might miss some of the functionality provided in more heavyweight environments such as Cinnamon or KDE.

Liking This Linux Flavor

Often, reviewers describe a particular Linux distro as being suitable for newcomers. That statement implies that the distro is easy to use because it resembles Microsoft Windows.

Software reviewers sometimes confuse the Linux of yesteryear with today’s typical Debian-style distros. Yes, Linux distros used to be hard to configure. They used to require advanced command line interface (CLI) skills.

A few Linux families must plead guilty to both accusations today. Think Arch Linux or enterprise class Linux offerings, for example. However, those design features are deliberate and welcomed by more seasoned Linux users who want total system control.

Elementary OS has no resemblance to Microsoft Windows or other more challenging Linux offerings. Using Elementary OS is more like running the Android OS on a desktop with the added functionality of virtual workspaces for multitasking.

The default settings work without fiddling. If you decide to venture into system settings, the experience is no more challenging than the settings on your cellphone.

The only difference is the limited categories. The Pantheon desktop has just five settings categories: Personal, Hardware, Network & Wireless, and Administration. Even better, the live session ISO lets you go from trying it out to installing it hassle-free.

That is what makes Elementary OS easy to use. It does not require decisions such as which desktop environment to use. It is elementary! This OS only has one choice — the Pantheon desktop.

The Pantheon Pathway

The Pantheon desktop is written using Vala and the GTK3 toolkit. That makes it modern and fast. It has a similarity to the GNOME 3 Shell but does not fully mimic it.

A configurable Mac-like app doc sits at the bottom of the screen in place of a traditional Linux panel. Basic system tools and a few frequently used application icons are displayed on this bar. Right-click on each icon for content-specific actions, including an option to remove it from the dock.

Much like the tool bar in Chrome OS or the task bar on an Android device, this bottom app dock displays icons for running applications. You can right-click on any of the icons to keep them or add them to the dock. Depending on the icon, you can close the app window or execute other functions in the right-click menu.

A transparent panel bar crosses the top of the screen. You can not add any applets there or dock any running applications. The right end holds a few essential system notifications. These include the Language emblem, Internet connection status, Bluetooth and battery status markers, and the Power Off icon to access the shutdown menu.

The far left end of the panel has an applications menu. The date and time are visible in the center of the panel space.

Applications and Hot Corners

The applications menu is nice and different. The default setting opens a grid display of installed applications. Click the two buttons at the top of the applications window left of the search field to switch views to categories.

Depending on the type of app involved, right-clicking on an app icon in the menu gives you an option to add the item to the dock bar at the bottom of the screen. Some of the apps give you the option to execute other actions without first having to launch the app. This is handy.


Elementary OS Pantheon desktop settings for wallpaper, appdock, hot corners

The Pantheon desktop provides a few choices for background images, AppDock behavior, and hot corners all under the Desktop portion of the Settings control.


With the Applications window open, start typing the name of an app to launch. A list of possible matches displays, and it instantly updates as you continue to type. If you change your mind, click on the desktop to close the Applications menu window. Otherwise, the windows self closes when you click on an icon to launch an app.

In the settings panel you can designate actions for each of the four hot corners. This is a convenient way to execute frequently used navigation actions.

The developers have a minimalist view in mind for the preinstalled software. You literally get a bare minimum of applications and tools to let you set up the rest of the system your way. while a bit inconvenient, this approach ensures that you do not have to deal with removing bloat.

Installed Inventory

The developers created applications built specifically for Elementary OS’ custom-made desktop environment. You get a few of these in the installed software bundle. The rest you must install from the AppCenter.

Applications include Calculator, Calendar, a files manager, Photos, Music and Videos. The Epiphany Web browser also is preinstalled. The Applications menu provides access to GParted Partition Editor, an email client, a WebCam app, a screenshot app and System Settings.

The Applications menu includes launchers for the AppCenter and Multitasking View. Many of these core apps and system tools are pinned to the bottom dock.


Elementary OS Pantheon Applications menu

The Applications menu contributes greatly to the user interface of the Pantheon desktop, but the Epiphany browser and sparse collection of preinstalled apps are not enough to provide out-of-the-box functionality.


Multitasking Flow

Access to virtual workplaces is handled differently than with the more traditional applets for virtual workplaces other Linux desktops employ. Elementary OS does not use the term “workspaces.” Instead, the desktop design is built around a multitasking layout, which is really what using virtual workspaces is all about.

It took me a while to adjust to this new approach. My muscle memory had to unlearn clicking on a space in a workplace switcher applet in the bottom panel or using a keyboard shortcut or Alt-Tab to bounce around virtual workspaces.

Elementary OS’ design is a big improvement over the slide-out panels found in GNOME 3. The Multitasking button changes the screen display to a mini Expo view. In place of the Dock bar, an application icon appears for each open application at the bottom of a reduced view of the current desktop.

A Plus button lets you add another workspace. A vertical slice of the background image appears at one or both screen side edges depending on how many workspaces you create.

To navigate among the workspaces, either click the icon in the multitasking bar or click one of the side panels. When you get to the desired workspace view, click on the visible reduced desktop image in the center of the screen, or the app icon in the multitasking bar at the bottom of the screen.

This is where the hot corners come in handy. I set up two hot corners. The bottom left opens the multitasking view. The bottom right corner displays a mini view of all workspaces. Then I click the one I want as the full-screen display.

What’s New Inside

The latest version of elementary OS has some worthwhile improvements. Updates to the desktop environment, file manager and software center add nice touches.

This release is the culmination of numerous updates and enhancements that focus on providing a more refined user experience with improved productivity for new and seasoned users.

Night Light is one example. It has both a manual timer and an automatic Sunrise to Sunset option. Night Light reduces the blue light output of the display. This can help reduce eye strain and sleeplessness.

A new Night Light indicator appears in the Panel for easy access to adjusting the display temperature or snoozing Night Light until the next day. It also provides a quick way to jump straight into the relevant screen in System Settings.

Another example is the tweaking added to the Tiling feature. You can now manage app windows with a blue feed-forward preview.

Bottom Line

The more I use the multitasking feature, the more I like its click-and-go navigational style. Getting rid of workspaces or running apps is simple. Hover the mouse pointer over the multitasking bar and click the icon’s circled X.

Elementary OS is a very solid Linux distro. Its uncluttered design is encouraged by not being able to place app icons on the desktop. There are no desklet programs to create distractions.

So far, the only real obstacle I’ve encountered in using Elementary OS is the need to adapt to having fewer power-user features. While basic installation was smooth and event free, not having preinstalled text editors, word processors or an alternative Web browser was an inconvenience.

New users who do not know what software they need to fill this void are at a big disadvantage.

Want to Suggest a Review?

Is there a Linux software application or distro you’d like to suggest for review? Something you love or would like to get to know?

Please
email your ideas to me, and I’ll consider them for a future Linux Picks and Pans column.

And use the Reader Comments feature below to provide your input!


Jack M. Germain has been an ECT News Network reporter since 2003. His main areas of focus are enterprise IT, Linux and open source technologies. He has written numerous reviews of Linux distros and other open source software.
Email Jack.





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Microsoft Goes Open Source with Web Browsers » Linux Magazine


The “new” Microsoft under Satya Nadella is now going deeper with Open Source. The company is dropping its own technologies that power its Edge web browser, which replaced Internet Explore. But instead of reinventing the wheel and creating their browser from scratch, Microsoft will use Google’s Open Source Chromium browser as the base of its web browser.

Microsoft will cease to use the EdgeHTML rendering engine for its Chromium-based web browser and will use Google’s Blink rendering engine.

“We will move to a Chromium-compatible web platform for Microsoft Edge on the desktop. Our intent is to align the Microsoft Edge web platform simultaneously (a) with web standards and (b) with other Chromium-based browsers,” said Joe Belfiore, Corporate Vice President of Windows in a blog post, “

Microsoft is also planning to bring its Chromium-based web browser to competing platforms like macOS. “We also expect this work to enable us to bring Microsoft Edge to other platforms like macOS. Improving the web-platform experience for both end users and developers requires that the web platform and the browser be consistently available to as many devices as possible,” said Belfiore.

Will, it also come to Linux? Does this also mean that one day we may see Linux-powered Windows? Time will tell.



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Intel Working On Open-Sourcing The FSP – Would Be Huge Win For Coreboot & Security


INTEL --

Intel’s Architecture Day on Tuesday was delightfully filled with an overwhelming amount of valuable hardware information, but Intel’s software efforts were also briefly touched on too. In fact, Raja Koduri reinforced how software is a big part of Intel technology and goes in-hand with their security, interconnect, memory, architecture, and process pillars and that’s where their new oneAPI initiative will fit in. But what learning afterwards was most exciting on the software front.

Raja shared during his presentation that Intel has around 15,882 people working on software at the company. The number is certainly high and caught me by some surprise but, of course, they are one of the largest contributors to the Linux kernel, maintain a plethora of open-source projects under the Intel Open-Source Technology Center, put out a lot of Windows software as well, the ICC compiler, and a lot of other software applications and tools. In comparison, the latest reports put AMD’s total headcount at around nine thousand, compared to Intel having fifteen thousand working on software alone of their more than one hundred thousand employees worldwide.

Another number Raja shared during his presentation was that Intel oversees 35 Linux distributions. Intel’s most notable Linux distribution is likely Clear Linux, which we feature a lot thanks to its incredible performance potential, but they are also heavily involved in Yocto, MeeGo/Moblin in the past, etc.

After a round-table discussion with Raja Koduri and Jim Keller though came the biggest surprise for me of the day… I decided to ask Raja if given Intel’s renewed emphasis on security whether there were any plans to open-source the FSP… I asked it just like I ask NVIDIA if they have any new plans to help open-source drivers and other long enduring questions along those lines just for one day hoping to hear the long sought after response while not expecting to be surprised… But Raja threw that surprise: he’s working on it!

Free software purists, security conscience users, and others have for years wanted Intel to open-source their firmware support package (FSP) for initializing the Intel silicon – the CPU, memory controller, chipset – rather than being a binary blackbox that could potentially contain backdoors and an inhibitor for those wanting an open-source system down to the BIOS. Intel does a job of great open-source work at many levels of the stack, but at this lowest-level with the FSP is where sadly has been this binary blob needed to initialize Intel hardware. Raja indicated that he is indeed working on opening it up.

When having another opportunity to ask him about it later in the day, asking about a possible time-frame he expected to know more in Q1 — quite pleasant as after being caught off-guard by his initial response, fearing it could be more of a multi-year undertaking. He also indicated that there is customer demand for having the FSP open-source. When asked whether this would just be for future platforms or also current hardware, he didn’t have an immediate answer. Unfortunately, with Raja being in high demand at such an event, there wasn’t much extra time for asking other questions of interest to our Linux/open-source audience.

This is exciting as hell for making Intel hardware more open-source friendly and increases the prospects of better Coreboot/LinuxBoot support on newer Intel motherboards and also a reasonable measure for ensuring better security in today’s environment. It will also be interesting to see if this move makes AMD then reconsider opening up their AGESA.

While it’s not set in stone yet, it’s looking good like we could see an Intel open-source FSP in 2019… When I hear anything more, I’ll certainly pass it along for what is looking like a major win for open-source and security.


Linux Kernel Developers Discuss Dropping x32 Support


LINUX KERNEL --

It was just several years ago that the open-source ecosystem began supporting the x32 ABI, but already kernel developers are talking of potentially deprecating the support and for it to be ultimately removed.

The Linux x32 ABI as a reminder requires x86_64 processors and is engineered to support the modern x86_64 features but with using 32-bit pointers rather than 64-bit pointers. The x32 ABI allows for making use of the additional registers and other features of x86_64 but with just 32-bit pointers in order to provide faster performance when 64-bit pointers are unnecessary.

While the x32 support was plumbed through the Linux landscape, it really hasn’t been used much. Kernel developers are now discussing the future of the x32 ABI due to the maintenance cost involved in still supporting this code but with minimal users.

Linus Torvalds is in favor of sunsetting x32 and many other upstream contributors in favor of seeing it deprecated and removed. However, there are some users still of this port although no known enterprise users, so we’ll see what ends up happening with Linux x32.