Upgrade Ubuntu 20.04 Linux Kernel Verify Installed Kernel Version Type the following command in command line to view currently installed Kernel version: sudo uname -r Should output output similar to below: 5.4.0-80-generic Download latest Kernel Version Navigate to the kernel-ppa website and then click on the latest Kernel version (at the time of this writing v5.15, adjust as necessary) (Figure 1). Figure 1 Next click on your platform version (most likely amd64) (Figure 2). Figure 2 Using wget download the following files (adjust file names to your version and date) (Figure 3): wget linux-headers-__all.deb wget linux-image-unsigned--generic_._amd64.deb wget linux-modules--generic_._amd64.deb Figure 3 Install latest Kernel version From the directory where you downloaded all the Kernel .deb files from above, run the following command: sudo dpkg -i *.deb Once installation is finished, reboot your computer and check that the Kernel has been upgraded by running the following command again: sudo uname -r