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Red Hat

Fedora 31 Looking At No Longer Building i686 Linux Kernel Packages

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Linux
Red Hat

Not to be confused with Ubuntu's varying stance on dropping 32-bit packages beginning with their next release later this year, Fedora 31 now has a proposal pending to discontinue their i686 kernel builds but they will still be keeping with their 32-bit packaging.

This Fedora 31 change proposal by Justin Forbes, one of Fedora's kernel hackers, is just about ending i686 kernel builds beginning with this Fedora release due out in October. The i686 kernel-headers package would still be offered in order to satisfy necessary dependencies for 32-bit programs needing those headers. Of course, users will have to be running off a 64-bit kernel. All 32-bit programs should continue to work on Fedora 31.

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Also: Fedora Workstation 31 Is Looking Great With Many Original Features Being Worked On

Fedora booth at Red Hat Summit

Fedora Update Week 23–24

On the Road to Fedora Workstation 31

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Red Hat

So I hope everyone is enjoying Fedora Workstation 30, but we don’t rest on our laurels here so I thought I share some of things we are working on for Fedora Workstation 31. This is not an exhaustive list, but some of the more major items we are working on.

Wayland – Our primary focus is still on finishing the Wayland transition and we feel we are getting close now, and thank you to the community for their help in testing and verifying Wayland over the last few years. The single biggest goal currently is fully removing our X Windowing System dependency, meaning that GNOME Shell should be able to run without needing XWayland. For those wondering why that has taken so much time, well it is simple; for 20 years developers could safely assume we where running atop of X. So refactoring everything needed to remove any code that makes the assumption that it is running on top of X.org has been a major effort. The work is mostly done now for the shell itself, but there are a few items left in regards to the GNOME Setting daemon where we need to expel the X dependency. Olivier Fourdan is working on removing those settings daemon bits as part of his work to improve the Wayland accessibility support. We are optimistic that can declare this work done within a GNOME release or two. So GNOME 3.34 or maybe 3.36. Once that work is complete an X server (XWayland) would only be started if you actually run a X application and when you shut that application down the X server will be shut down too.

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Fedora 30 Elections Results

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Red Hat

The Fedora 30 election cycle has concluded. Here are the results for each election. Congratulations to the winning candidates, and thank you all candidates for running in this election!

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Red Hat: Fedora BoF at Red Hat Summit, Volume Cloning Alpha for Kubernetes, Dell/EMC

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Red Hat
  • Fedora BoF at Red Hat Summit

    Every year, Red Hat holds a conference for customers, partners, and open source contributors — Red Hat Summit.This year’s was last month, in Boston, Massachusetts, and of course Fedora was there. We had our booth in the “Community Central” area of the expo floor, and ran a birds-of-a-feather (BoF) session for open discussion with community members. I was joined by Brian Exelbierd, Ben Cotton, Adam Šamalík, and a dozen members of the Fedora community.

    We used a “lean coffee” format to drive the topics, letting the attendees propose and vote on what we discussed. (It’s basically the same format we use for Fedora Council’s open floor meetings, but in person rather than via IRC.) I expected a lot of questions about the new features of Fedora 30, which was released eight days before. But the community members who came to the BoF seemed pretty well-informed on this. Instead, the most-voted topic was Fedora Modularity.

  • Introducing Volume Cloning Alpha for Kubernetes

    Kubernetes v1.15 introduces alpha support for volume cloning. This feature allows you to create new volumes using the contents of existing volumes in the user’s namespace using the Kubernetes API.

  • How Dell EMC and Red Hat work together on joint solutions

    From virtualization and cloud to enterprise IT optimization and performance, Red Hat and Dell EMC deliver open, cost-effective and highly reliable solutions. Our jointly designed and architected solutions blend the best of Red Hat technology with Dell EMC’s customer-driven innovation to create solutions and services that address real-world needs.

Red Hat and SUSE Leftovers

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Red Hat
SUSE
  • How a service mesh helps manage distributed microservices

    A service mesh brings security, resiliency, and visibility to service communications, so developers don’t have to

  • RHEL 8: 'the foundation for digital transformation'
  • 7 infrastructure performance and scaling tools you should be using

    Sysadmins, site reliability engineers (SREs), and cloud operators all too often struggle to feel confident in their infrastructure as it scales up. Also too often, they think the only way to solve their challenges is to write a tool for in-house use. Fortunately, there are options. There are many open source tools available to test an infrastructure's performance. Here are my favorites.

  • Future of CRDs: Structural Schemas

    Authors: Stefan Schimanski (Red Hat)

    CustomResourceDefinitions were introduced roughly two years ago as the primary way to extend the Kubernetes API with custom resources. From the beginning they stored arbitrary JSON data, with the exception that kind, apiVersion and metadata had to follow the Kubernetes API conventions. In Kubernetes 1.8 CRDs gained the ability to define an optional OpenAPI v3 based validation schema.

    By the nature of OpenAPI specifications though—only describing what must be there, not what shouldn’t, and by being potentially incomplete specifications—the Kubernetes API server never knew the complete structure of CustomResource instances. As a consequence, kube-apiserver—until today—stores all JSON data received in an API request (if it validates against the OpenAPI spec). This especially includes anything that is not specified in the OpenAPI schema.

  • Redis 5 now available on Red Hat Enterprise Linux 7

    Red Hat Software Collections supply the latest, stable versions of development tools for Red Hat Enterprise Linux via two release trains per year. As part of the latest Software Collections 3.3 release, we are pleased to announce that Redis 5 is now generally available and supported on RHEL 7.

    The new Red Hat Software Collection includes Redis 5.0.3. Redis 5 is an open source in-memory data structure store, used as a database, cache and/or message broker. This version provides multiple enhancements and bug fixes over version 3.2 distributed with an earlier Red Hat Software Collections release. Most notably, the redis-trib cluster management tool has been implemented in the Redis command-line interface.

    The primary addition in Redis 5 is Streams—a new log-like data structure for storing multiple fields and string value with automatic sequencing. For detailed changes in Redis, see the upstream release notes for version 4.0 and version 5.0.

  • Mentoring new system administrators

    While this article is geared toward senior system administrators taking a more active role in the development of newer team members, those readers who are new might find interest in a different view of the world of working with newer systems administrators.

    As a system administrator who has been in the role for a long time, it’s easy to shake a proverbial cane at those newer team members who bother you with inane questions lacking the technical detail needed to provide a complete answer. It would be so easy to gruffly utter a few words to get them to go away, or point out the lack of specificity of the question in such a way as to make them feel so small that they won't talk to you again. I’ve been there, and—being frank—done exactly that.

    I was recently reading a discussion forum where there was an administrator who appeared inexperienced and, apparently, all on his or her own to figure things out. That caused me to think back to my first system administration job, and realize how thankful I am that when I started, I had someone senior who was willing to invest time in helping me become better. This better didn’t come in the form of drilling me with commands or syntax, but with a more Socratic method to help me develop skills that I use almost every day.

    When I first started with the group, whenever I hit an issue, I would go down to Chris’ office with my notepad and pencil and ask him about the problem (sometimes multiple times a day). After about a week of this, I came into his office, as usual, to ask about a system call or something. He didn’t look at me and put his hand up, signaling me to stop.

    After he finished whatever it was he was working on, he turned to me and said, “What research have you done about this question? Man pages? Google searches? -h output?”

    I said, “No, I just came down here to ask you.”

  • SUSE now member of iRODS, Sponsor of User Group Meeting

    This month, SUSE became a member of the iRODS (integrated Rule-Oriented Data System) consortium which is an open source data management software used by research organizations and government agencies worldwide.

    [...]

    iRODS UGM will host 25+ presentations from the user community and the core development team, including use case presentations, live demonstrations, and open discussions about requested iRODS features. They anticipate an audience of 150 participants representing dozens of academic, government, and commercial institutions.

CentOS 7 and RHEL 7 Get Important Linux Kernel Update to Patch SACK Panic Flaws

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Red Hat
Security

The new Linux kernel security updates patch an integer overflow flaw (CVE-2019-11477) discovered by Jonathan Looney in Linux kernel's networking subsystem processed TCP Selective Acknowledgment (SACK) segments, which could allow a remote attacker to cause a so-called SACK Panic attack (denial of service) by sending malicious sequences of SACK segments on a TCP connection that has a small TCP MSS value.

"While processing SACK segments, the Linux kernel's socket buffer (SKB) data structure becomes fragmented," reads Red Hat's security advisory. "Each fragment is about TCP maximum segment size (MSS) bytes. To efficiently process SACK blocks, the Linux kernel merges multiple fragmented SKBs into one, potentially overflowing the variable holding the number of segments."

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Making Fedora 30

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Red Hat

Although Fedora 29 released on October 30, 2018, work on Fedora 30 began long before that. The first change proposal was submitted in late August. By my count, contributors made nine separate change proposals for Fedora 30 before Fedora 29 shipped.

Some of these proposals come early because they have a big impact, like mass removal of Python 2 packages. By the time the proposal deadline arrived in early January, the community had submitted 50 change proposals.

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Red Hat's last quarterly report?

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Red Hat

Soon, IBM will complete its acquisition of Red Hat for $34-billion. But, Red Hat's not resting on its laurels waiting. The company announced its financial results for the first quarter of fiscal year 2020 ended May 31, 2019. With first quarter total revenue of $934 million, up 15 percent year-over-year in USD, or 18 percent in constant currency, Red Hat did quite well.

Still, Wall Street expected Red Hat to report net income of $162.4 million, or 87 cents a share, on sales of $931.6 million after the market closes on Thursday, based on a FactSet survey of 14 analysts. In reality, Red Hat GAAP net income for the quarter was $141 million, or $0.76 diluted earnings per share. Non-GAAP adjusted net income for the quarter was $186 million, or $1.00 diluted EPS.

Not bad. Not bad at all.

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Fedora 30 test on laptop with Nvidia - Back in 2010

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Red Hat
Hardware
Reviews

I think the results are obvious, and they speak for themselves. Alas, it would seem that if you want to use Fedora with a setup like the above, then you'll be either very lucky or you're going to face a torrent of problems. But then, Linux has always been, to use a somewhat stupid analogy, like saying you should only drive your car on Mondays on roads that have green sidewalks, and then you will be fine. The whole not-our-problem, use hardware that's "friendly" is nonsense, because people don't have infinite money, choice or expertise, especially since alternative operating systems offer all they need, plus a full range of hardware freedom.

My Fedora 30 test on the G50 was decent - that's a simple Intel graphics box - but even that one used to have millions of problems with Linux - Fedora wouldn't boot until I'd done a BIOS update, and for three years, almost every distro had network disconnect problems. On this box, we're seeing more of what I showed you in the Fedora 29 test. Fedora and Nvidia graphics are not a good fit. Add to that my home dir import woes, the performance woes, the Wireless woes, you get the picture. Feels like we've gone back many years into the past. I'd actually prefer if distros WARNED that the device is not certified or approved or expected to work and refuse to install, than install and then throw a whole bucket of hissy. I will still run an in-vivo upgrade on the Lenovo machine, because that's what I promised to do, but this is a big, big disappointment.

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Red Hat and SUSE Leftovers

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Red Hat
SUSE
  • Are DevOps certifications valuable? 10 pros and cons
  • Kubernetes 1.15: Enabling the Workloads

    The last mile for any enterprise IT system is the application. In order to enable those applications to function properly, an entire ecosystem of services, APIs, databases and edge servers must exist. As Carl Sagan once said, “If you wish to make an apple pie from scratch, you must first invent the universe.”

    To create that IT universe, however, we must have control over its elements. In the Kubernetes universe, the individual solar systems and planets are now Operators, and the fundamental laws of that universe have solidified to the point where civilizations can grow and take root.

    Discarding the metaphor, we can see this in the introduction of Object Count Quota Support For Custom Resources. In English, this enables administrators to count and limit the number of Kubernetes resources across the broader ecosystem in a given cluster. This means services like Knative, Istio, and even Operators like the CrunchyData PostgreSQL Operator, the MongoDB Operator or the Redis Operator can be controlled via quota using the same mechanisms that standard Kubernetes resources have enjoyed for many releases.

    That’s great for developers, who can now be limited by certain expectations. It would not benefit the cluster for a bad bit of code to create 30 new PostgreSQL clusters because someone forgot to add a “;” at the end of a line. Call them “guardrails” that protect against unbounded object growth in your etcd database.

  • Red Hat named HPE’s Partner of the Year at HPE Discover 2019

    For more than 19 years, Red Hat has collaborated with HPE to develop, deliver and support trusted solutions that can create value and fuel transformation for customers. Our work together has grown over these nearly two decades and our solutions now include Linux, containers and telecommunications technologies, to name just a few. As a testament to our collaboration, HPE has named Red Hat the Technology Partner of the Year 2019 for Hybrid Cloud Solutions.

  • Demystifying Containers – Part II: Container Runtimes

    This series of blog posts and corresponding talks aims to provide you with a pragmatic view on containers from a historic perspective. Together we will discover modern cloud architectures layer by layer, which means we will start at the Linux Kernel level and end up at writing our own secure cloud native applications.
    Simple examples paired with the historic background will guide you from the beginning with a minimal Linux environment up to crafting secure containers, which fit perfectly into todays’ and futures’ orchestration world. In the end it should be much easier to understand how features within the Linux kernel, container tools, runtimes, software defined networks and orchestration software like Kubernetes are designed and how they work under the hood.

  • Edge > Core > Cloud: Transform the Way You Want

    For more than 25 years, SUSE has been very successful in delivering enterprise-grade Linux to our customers. And as IT infrastructure has shifted and evolved, so have we. For instance, we enabled and supported the move to software-defined data centers as virtualization and containerization technologies became more prevalent and data growth demanded a new approach.

  • SUSE OpenStack Cloud Technology Preview Takes Flight

    We are pleased to announce that as of today we are making a technology preview of a containerized version of SUSE OpenStack Cloud available that will demonstrate a future direction for our product. The lifecycle management for this technology preview is based on an upstream OpenStack project called Airship, which SUSE has been using and contributing to for some time. This follows our open / open policy of upstream first and community involvement.

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