Ubuntu has long been a popular choice for Linux instances on Azure. Our ongoing partnership with Microsoft has brought forth great results, such as the support of the latest Azure features, Ubuntu underlying SQL Server instances, bash on Windows, Ubuntu containers with Hyper-V Isolation on Windows 10 and Windows Servers, and much more.
Canonical, with the team at Microsoft Azure, are now delighted to announce that as of September 21, 2017, Ubuntu Cloud Images for Ubuntu 16.04 LTS on Azure have been enabled with a new Azure tailored Ubuntu kernel by default. The Azure tailored Ubuntu kernel will receive the same level of support and security maintenance as all supported Ubuntu kernels for the duration of the Ubuntu 16.04 LTS support life.
The kernel itself is provided by the linux-azure kernel package. The most notable highlights for this kernel include:
The ongoing collaboration between Canonical and Microsoft will also continue to produce upgrades to newer kernel versions providing access to the latest kernel features, bug fixes, and security updates. Any Ubuntu 16.04 LTS image brought up from the Azure portal after September 21st will be running on this Azure tailored Ubuntu kernel.
How to verify which kernel is used:
$ uname -r 4.11.0-1011-azure
Instances using the Azure tailored Ubuntu kernel will, of course, be supportable through Canonical’s Ubuntu Advantage service, available for purchase on our online shop or through email@example.com in three tiers:
The Azure tailored Ubuntu kernel also supports the Canonical Livepatch Service part of the Ubuntu Advantage Essential package.
If, for some reason you would rather use the standard kernel it is possible to revert to it using the following commands:
$ sudo apt install linux-virtual linux-cloud-tools-virtual $ sudo apt purge linux*azure $ sudo reboot
As we continue to collaborate closely with various Microsoft teams on public cloud, private cloud, containers and services, you can expect further boosts in performance, simplification of operations at scale, and enablement of new innovations and technologies.
By Leann Ogasawara, Director of Kernel Engineering
Ubuntu offers all the training, software infrastructure, tools, services and support you need for your public and private clouds.
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