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Blog posts with topic "kernel"

Igor Ljubuncic
15 April 2021

Should you ever reinstall your Linux box? If so, how?

Desktop Article

Broadly speaking, the Linux community can be divided into two camps – those who upgrade their operating systems in-vivo, whenever there is an option to do so in their distro of choice, and those who install from scratch. As it happens, the former group also tends to rarely reinstall their system when problems occur, while ...

Lech Sandecki
8 December 2020

Ubuntu 16.04 LTS upgrade vs extended security maintenance

Ceph Article

Weighing the options with an Ubuntu 16.04 upgrade Ubuntu 16.04 LTS Xenial Xerus is transitioning from its five-year standard security maintenance window in four months, leaving many asking the question: can I manage an Ubuntu 16.04 LTS upgrade by April 2021, or do I need more time to plan this migration? In the Less than ...

esj
24 June 2020

AMD EPYC Rome support in Ubuntu Server

Cloud and server Article

The second generation of AMD EPYC central processing unit (CPU), codenamed Rome, provides outstanding performance and “hardened at the code” security. It was launched in 2019 and has already been widely adopted. Support for AMD EPYC Rome has been merged to the Linux kernel starting with 5.4 series. Therefore, all Ubuntu releases with 5.4 ...

liam zheng
24 June 2020

Building an Ubuntu Core 18 image for Nitrogen i.MX6 board

Internet of Things Article

This article is written by Taiten Peng. Have you got i.MX6 hardware and are wondering how Ubuntu Core would run on it? In this blog, we will build an Ubuntu Core 18 image with the generic Ubuntu kernel for an i.MX6 based Boundary Devices board. The Nitrogen6X hardware from Boundary Device is well supported upstream ...

Alex Chalkias
24 April 2020

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

Cloud and server Article

Ubuntu 20.04 LTS has just arrived. 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 ...

Francis Ginther
16 April 2020

Introducing the Ubuntu AWS Rolling Kernel

Cloud and server Article

The linux-aws 4.15 based kernel, which is the default kernel in the Ubuntu 18.04 LTS AMIs, is moving to a rolling kernel model. Why is this changing? The Ubuntu rolling kernel model provides the latest upstream bug fixes and performance improvements around task scheduling, I/O scheduling, networking, hypervisor guests and containers to ou ...

Lech Sandecki
10 December 2019

CVE patching alone is not making your Linux secure

Ubuntu Article

Would you like to enhance your Linux security? Do you wonder what factors should be considered when evaluating your open source security from both – the infrastructure and the application perspectives? Are you keen to learn the Ubuntu security team approach? I’ve learned that CVE patching is indeed an important puzzle, but without a struc ...

Lech Sandecki
22 October 2019

How Ubuntu Advantage for Infrastructure delivers top-notch Linux security

Ubuntu Article

Linux security is central to each release of Ubuntu, the most widely-used Linux distribution. With Ubuntu’s predictable six-month release cycle, users know when to expect the latest upstream open source capabilities and security. Long Term Support (LTS) vs Interim releases Every two years in April, a Long Term Support (LTS) release is pub ...

Andres Rodriguez
12 September 2019

Hardware discovery and kernel auto-configuration in MAAS

Cloud and server Article

In this blog, we are going to explore how to leverage MAAS for hardware discovery and kernel auto-configuration using tags. In many cases, certain pieces of hardware require extra kernel parameters to be set in order to make use of them. For example, when configuring GPU passthrough we will typically need to configure the GPU ...

Alex Hung
8 July 2019

Analyze ACPI Tables in a Text File with FWTS

Cloud and server Article

I often need to implement tests for new ACPI tables before they become available on real hardware. Fortunately, FWTS provides a framework to read ACPI tables’ binary. The below technique is especially convenient for ACPI firmware and OS kernel developers. It provides a simple approach to verifying ACPI tables without compiling firmware an ...

Christian Reis
24 January 2018

Meltdown, Spectre and Ubuntu: What you need to know

Cloud and server Article

As details of the Meltdown and Spectre vulnerabilities1 have become clearer a number of statements have been published by the multiple vendors affected; Canonical has issued advisories and updates on fixes and mitigations, the latest of which includes a first round of Spectre mitigations. However, most of these statements focus on the mec ...

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