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Blog posts tagged
"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 ...

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 ...

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 ...

Canonical
24 January 2018

Kernel team summary – 24 January 2018

Cloud and server Article

January 09 through January 23 The Kernel Team is completely focused on addressing any Spectre and Meltdown issues as they arise. A secure Ubuntu is our top priority. No new Livepatches are being produced and our regular SRU cycles are suspended while we address Spectre and Meltdown. Spectre mitigation kernels are available. The kernels i ...

Canonical
6 December 2017

Kernel Team Summary – December 6, 2017

Cloud and server Article

November 21 through December 04 Development (18.04) Every 6 months the Ubuntu Kernel Team is tasked to pick the kernel to be used in the next release. This is a difficult thing to do because we don’t definitively know what will be going into the upstream kernel over the next 6 months nor the quality ...

Canonical
18 October 2017

Kernel Team Summary – October 18th, 2017

Cloud and server Article

Development (Artful / 17.10) https://wiki.ubuntu.com/ArtfulAardvark/ReleaseSchedule Important upcoming dates: Ubuntu 17.10 Release – Oct 19 (~1 days away) We intend to target a 4.13 kernel for the Ubuntu 17.10 release. A 4.13.4 based kernel is available for testing from the artful-proposed pocket of the Ubuntu archive. Stable (Released & ...

Canonical
4 October 2017

Kernel Team Summary – October 4, 2017

Cloud and server Article

September 25 through October 03 Development (Artful / 17.10) https://wiki.ubuntu.com/ArtfulAardvark/ReleaseSchedule Important upcoming dates: Kernel Freeze – Oct 5 (~1 day away) Final Freeze – Oct 12 (~1 week away) Ubuntu 17.10 – Oct 19 (~2 week away) We intend to target a 4.13 kernel for the Ubuntu 17.10 release. A 4.13.4 based kernel i ...

Udi Nachmany
5 April 2017

Ubuntu on AWS gets serious performance boost with AWS-tuned kernel

Cloud and server Article

Canonical and Amazon Web Services have been working closely together to create the best experience of the world’s most popular cloud OS, on the world’s most popular public cloud. Official Ubuntu guest images have been available on AWS for years, and underlie the majority of workloads on the service—whether you use the EC2 Quickstart, Mark ...

Dustin Kirkland
16 June 2016

sudo purge-old-kernels: Recover some disk space!

Cloud and server Article

If you have long-running Ubuntu systems (server or desktop), and you keep those systems up to date, you will, over time, accumulate a lot of Linux kernels.Canonical’s Ubuntu Kernel Team regularly (about once a month) provides kernel updates, patching s ...

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