Canonical introduced that the default Linux kernel within the Ubuntu 18.04 LTS AMIs (Amazon Machine Images) is shifting to a rolling kernel mannequin.
Until now, the Ubuntu photos for AWS (Amazon Web Services) have been utilizing a traditional Linux kernel that was up to date every time a brand new safety replace was out there. With the brand new rolling mannequin, the kernel within the Ubuntu AWS photos will get all the newest fixes, efficiency tweaks, and safety patches from upstream, as quickly as they’re out there.
"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 our users," stated Canonical. "Canonical has been following this model in other cloud environments for some time now, and have found it to be an excellent way to deliver these benefits while continuing to provide LTS level stability."
How to get began with a rolling kernel in Ubuntu AMIs
Starting at the moment, the rolling kernel mannequin is being utilized to the Ubuntu 18.04 LTS (Bionic Beaver) Amazon Machine Images, which is able to improve customers from the common Linux 4.15 kernel to the Linux 5.zero kernel from the Ubuntu 19.04 (Disco Dingo) launch, which is offered for preview because the linux-aws-edge kernel and it is strongly recommended solely for non-production deployments.
Those who need to set up the Linux 5.zero rolling kernel of their Ubuntu AWS machines must run the instructions beneath within the terminal window. After a profitable set up, you should reboot the machine with the second command set listed beneath, and after reboot you’ll be able to see which kernel you're working with the third command set beneath.
If you don't need to use the rolling kernel and also you need to swap again to the common Ubuntu 18.04 LTS kernel, all you must do is run the instructions listed beneath adopted by a reboot. That's it! We ought to be aware although that the each kernel fashions supply the identical degree of high quality and sturdiness requirements that Canonical gives for all their kernels.