Live update the kernel of your ubuntu 16.04 or higher

The Linux kernel does not stop evolving and a feature that was introduced a long time ago is the possibility of updating it live, that is, without the need to restart the computer. Something that is undoubtedly very useful in the business environment where you cannot afford to turn off computers for an update and that we can already do with Ubuntu and Canonical.

How to live update the Ubuntu kernel

Canonical has made available to users its tool for the live update of the Ubuntu kernel, it is a free product as long as the 3 computers in use are not exceeded, if that number is exceeded, a fee of 12 must be paid dollars a month. This new service is not compatible with any version of Ubuntu, at least a Linux 4.4 kernel is required and in a 64-bit variant, due to this, versions prior to Ubuntu 16.04 are not in principle compatible with the new Canonical tool.

First of all we need to obtain a token or identification code so that the server recognizes us and updates the kernel, we can obtain it in a very simple way from this website. Once we have our code we just have to open a terminal and write the following commands:

sudo snap install canonical-livepatch sudo canonical-livepatch enable d4554fdet86adfg6234sd5ff00 X (we changed the L code for the one obtained previously)

Once this is done, we already have the service active, remember that it can be used for free in a maximum of three teams and that once that number is exceeded, it is necessary to go through the box.