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The kernel is the core and most essential component of Linux operating systems. It provides an interface between software applications and computer hardware. It manages I\/O disks, filesystems, CPU, and processes. The kernel is responsible for managing resources as efficiently as possible. The community of kernel Developers builds and deploys patches and updates to the Linux kernel to roll out security updates, bug fixes, and new functionality. If you are using a Linux operating system, updating the kernel to the latest version is a good idea.<\/p>\n
This post will show you how to install the latest Linux kernel on Ubuntu 20.04.<\/p>\n
First, check your current operating system using the following command:<\/p>\n
lsb_release -a<\/pre>\nYou will get your operating system version in the following output:<\/p>\n
No LSB modules are available.\r\nDistributor ID:\tUbuntu\r\nDescription:\tUbuntu 20.04.3 LTS\r\nRelease:\t20.04\r\nCodename:\tfocal\r\n<\/pre>\nNext, install the required dependencies with the following command:<\/p>\n
apt-get install gnupg2 wget -y<\/pre>\nNext, update and upgrade all system packages to the latest version.<\/p>\n
apt-get update -y\r\napt-get upgrade -y<\/pre>\nOnce all the packages are upgraded, restart your system to apply the changes:<\/p>\n
reboot<\/pre>\nStep 2 \u2013 Check the Current Kernel Version<\/h2>\n
Next, check the currently installed kernel version with the following command:<\/p>\n
uname -r<\/pre>\nYou will get the current kernel version in the following output:<\/p>\n
5.15.0-33-generic\r\n<\/pre>\nStep 3 \u2013 Download the Linux Kernel Installation Script<\/h2>\n
Next, download the Linux kernel installation script on your system. This script will allow us to install the latest kernel on Linux.<\/p>\n
wget https:\/\/raw.githubusercontent.com\/pimlie\/ubuntu-mainline-kernel.sh\/master\/ubuntu-mainline-kernel.sh<\/pre>\nOnce the download is complete, you will get the following output:<\/p>\n
--2022-04-13 15:35:52-- https:\/\/raw.githubusercontent.com\/pimlie\/ubuntu-mainline-kernel.sh\/master\/ubuntu-mainline-kernel.sh\r\nResolving raw.githubusercontent.com (raw.githubusercontent.com)... 185.199.109.133, 185.199.111.133, 185.199.110.133, ...\r\nConnecting to raw.githubusercontent.com (raw.githubusercontent.com)|185.199.109.133|:443... connected.\r\nHTTP request sent, awaiting response... 200 OK\r\nLength: 26474 (26K) \r\nSaving to: \u2018ubuntu-mainline-kernel.sh\u2019\r\n\r\nubuntu-mainline-kernel.sh 100%[=================================================================>] 25.85K --.-KB\/s in 0.001s \r\n\r\n2022-04-13 15:35:52 (26.9 MB\/s) - \u2018ubuntu-mainline-kernel.sh\u2019 saved [26474\/26474]\r\n<\/pre>\nNext, set the execution permissions to the downloaded script with the following command:<\/p>\n
chmod +x ubuntu-mainline-kernel.sh<\/pre>\nStep 4 \u2013 Install the Latest Kernel Version<\/h2>\n
First, list all available kernel versions using the following command:<\/p>\n
.\/ubuntu-mainline-kernel.sh -r<\/pre>\nYou will see all kernel versions in the following output:<\/p>\n
v6.2.5\t\tv6.2.6\t\tv6.2.7\t\tv6.2.8\t\tv6.2.9\t\tv6.2.10\t\tv6.2.11\t\tv6.2.12\t\tv6.2.13\t\tv6.2.14\r\nv6.2.15\t\tv6.2.16\t\tv6.3.0\t\tv6.3.1\t\tv6.3.2\t\tv6.3.3\t\tv6.3.4\t\tv6.3.5\t\tv6.3.6\t\tv6.3.7\r\nv6.3.8\t\tv6.3.9\t\tv6.3.10\t\tv6.3.11\t\tv6.3.12\t\tv6.3.13\t\tv6.4.0\t\tv6.4.1\t\tv6.4.2\t\tv6.4.3\r\nv6.4.4\t\tv6.4.5\t\tv6.4.6\t\tv6.4.7\t\tv6.4.8\t\tv6.4.9\t\tv6.4.10\t\tv6.4.11\t\tv6.4.12\t\tv6.4.13\r\nv6.4.14\t\tv6.4.15\t\tv6.4.16\t\tv6.5.0\t\tv6.5.1\t\tv6.5.2\t\tv6.5.3\t\tv6.5.4\t\tv6.5.5\t\tv6.5.6\r\nv6.5.7\t\tv6.5.8\t\tv6.5.9\t\tv6.5.10\t\tv6.5.11\t\tv6.5.12\t\tv6.6.0\t\tv6.6.1\t\tv6.6.2\r\n\r\n<\/pre>\nNext, run the Linux kernel installation script followed by your kernel version to install the specified kernel on your system.<\/p>\n
.\/ubuntu-mainline-kernel.sh -i v6.2.0<\/pre>\nYou will see the following output:<\/p>\n
Downloading amd64\/CHECKSUMS: 100% \r\nDownloading amd64\/CHECKSUMS.gpg: 100% \r\nImporting kernel-ppa gpg key ok\r\nSignature of checksum file has been successfully verified\r\nChecksums of deb files have been successfully verified with sha256sum\r\nInstalling 4 packages\r\nCleaning up work folder\r\n<\/pre>\nStep 5 \u2013 Restart the System<\/h2>\n
After the latest kernel installation, you must restart your system to boot the system from the newly installed kernel.<\/p>\n
reboot<\/pre>\n