Language Selection

English French German Italian Portuguese Spanish

Ubuntu: AWS Rolling Kernel, the Kernel in Ubuntu 20.04 LTS, Ubuntu Masters and "My Ubuntu 20.04 Distribution is Awesome"

Submitted by Roy Schestowitz on Friday 17th of April 2020 01:56:19 AM Filed under
Ubuntu
  • Introducing the Ubuntu AWS Rolling Kernel

    A rolling kernel model transitions the default linux-aws kernel from one base version to the next as part of its regular patching cycle. That new kernel is the kernel of the latest interim Ubuntu release. Applying this model directly to 18.04 today, the linux-aws kernel is a 4.15 based kernel and when we roll, it will become a 5.3 based kernel which was part of our 19.10 interim release.

    Today, that 5.3 kernel is currently available for preview as the linux-aws-edge kernel, which we encourage all users to run with their workloads in non-production deployments. It is important to keep in mind that both the -edge kernels and the rolling release kernels are fully baked prior to being made available for our customers to use and meet exactly the same quality and durability standards all our kernels must meet for release.

    When the linux-aws kernel rolls forward, a user would see this change in 1 of 2 ways, 1) launching the latest AMI would have the newer kernel, and 2) users applying packaging updates, or via automatic security updates, will also see the newer kernel.

  • Ubuntu kernel 5.4: What’s new with Ubuntu 20.04 LTS

    Ubuntu 20.04 LTS is only a few days away. The latest LTS comes with a new version of the Linux kernel – 5.4 – which brings a lot of exciting new features, faster boot times, enhanced performance and security. Additionally, the Canonical kernel team ran benchmark tests to validate the performance improvements of the new kernel.

    Defining which Linux kernel should be included in a long-term support release of Ubuntu is the essence of the work of the kernel team at Canonical. We are proud to say that we are the only Linux distribution to consistently include the latest stable upstream kernel. Canonical also provides bug fixes and kernel security updates every three weeks to ensure fully functional and secure kernel modules and a great user experience.

    Feature highlights in Ubuntu kernel v5.4

    This release enhances the kernel lockdown mode from previous Ubuntu releases. Lockdown is a significant Linux security module which strengthens the boundary between the root user and the kernel, restricting root access to various pieces of kernel functionality. Kernel lockdown can be configured at runtime, boot time or build time.

    5.4 also includes virtio-fs – a high-performance, FUSE-based virtio driver for full OS virtualisation. Virtio-fs allows a virtualised guest to share file systems with the host and mount a directory that has been exported on the host. Although this is already possible via solutions such as NFS or virtio-9P, virtio-fs does this with greater performance and application compatibility.

    Fs-verity is a new support layer that file systems can use to detect file tampering, similar to dm-verity. The biggest difference between the two is that fs-verity works on files rather than block devices. Fs-verity is currently supported on ext4 and f2fs file systems. In principle, fs-verity detects accidental (non-malicious) file corruption, but in practice it is also used as a tool to support authentication (detection of malicious modifications).

    Other important novelties of the 5.4 kernel are dm-clone, which allows users to clone device mapper targets, the support for new Intel/AMD GPUs and the exfat file system. Additionally, a new haltpoll cpuidle driver and a matching governor greatly improve performance, as they allow remote vCPUs to do guest-side polling for a specified amount of time before halting. Finally, blk-iocost, a new I/O cgroup controller, provides more accurate calculations of the cost of I/O.

  • You are invited to the virtual Ubuntu Masters event

    The Ubuntu Masters Conference is a platform for IT practitioners to share how they are solving industry-wide challenges with the global engineering community. These are the real-life use cases they are executing in their professional environments today, giving you actionable ideas to take into your own corporate setting.

  • My Ubuntu 20.04 Distribution is Awesome

    My Ubuntu 20.04 Distribution is Awesome Traded in Arch for Ubuntu... does it matter?

»

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.

More on Tux Machines: About ● Gallery ● Forum ● Blogs ● Search ● News ● RSS Feed

Part of Bytes Media ● Sister sites below.

TechBytes Techrights button

Powered by Drupal, an open source content management system

Content available under CC-BY-SA CC

© by original authors

Powered by CentOS 6.5 (GNU/Linux), Varnish, and Drupal 6