Yet kernel patching really matters, given how Linux kernel vulnerabilities keep emerging every month. Worse, sometimes kernel patching is seen as an arcane sysadmin job – never given much thought by anyone outside of the Linux fans in the company. Kernel patching is one of these processes – and often, organizations decide not to mess with a patching policy that looks like it works. Reliable, efficient IT depends on repeatable processes that run like clockwork – it doesn’t make sense to change practices all the time, but key policies still need to be refreshed every now and again to keep up with changes in the technology – and the cybersecurity landscape. Updates to the Linux kernel offer necessary security patches, performance improvements, and bug fixes to keep your system operating correctly. That's it! The kernel you are currently using is not the default option.Maintaining a secure and reliable system requires constant attention to the latest Linux kernel updates on the system administrator’s task list. Now, to enable the changes you just made, you will have to update the grub on Ubuntu: sudo update-grub Save changes and exit from the nano text editor. Once you boot into the kernel of your choice, open the grub config file using the given command: sudo nano /etc/default/grubĪnd add the following two lines to the grub config file: GRUB_DEFAULT=saved But you can't the old kernel a default choice without booting from it. Once you perform the above steps, you will boot with the old kernel. Select the kernel you want to make a default choice for every boot.If you have multiple kernels installed on Ubuntu, your system will boot with the most recent kernel.Īnd you may not want the latest kernel all the time.īut don't worry, you don't have to remove the latest kernel, you can make your preferred kernel a default choice.įirst, reboot your system, and at the GRUB screen perform: You can use the same method if you have installed multiple kernels and want to use specific ones at a time. Reboot your system and at the grub screen, choose the Advanced options for Ubuntu and select the kernel version: To install the latest kernel point release, use the following command: sudo mainline -install-pointīut if you have the latest mainline kernel and latest point release, your system will choose the latest kernel to boot.įor that, you'd have to choose your kernel version while the system boots. Once done, reboot your Ubuntu machine to have the effect from the latest kernel: rebootĪnd as you can see, when I checked for the currently running kernel, it indicated that I'm running the most recent kernel 6.1.9: uname -r Install the latest Linux kernel point release in Ubuntu To install the latest mainline kernel, all you have to do is execute the following command: sudo mainline -install-latest Install the latest mainline kernel in Ubuntu So I will share how to install both of them one by one. You can go with either of them or install both as you can choose one while the system boot. And the latest point release is 5.15.91.Once you are done with the installation, you can check the available latest mainline and the point release using the following command: mainline -check Now, use the following command to update the repository and install the mainline utility: sudo apt update & sudo apt install mainline To add PPA for the mainline package, use the following command: sudo add-apt-repository ppa:cappelikan/ppa To install the mainline kernel, you'd need a package named mainline.īut it is not available in the default repositories in Ubuntu so in that case, using PPA is the right choice when the package is not available in the default repository. Use old kernel by default for system boot.However, there is an unofficial PPA that lets you install the newer kernel easily. You can download your preferred version from the archive here and install the deb files. Yes! Ubuntu gives you the ability to install a newer mainline kernel. However, if you have noticed a bug or some hardware not being supported with the current kernel version, you can try upgrading the kernel and use the latest one. Usually, you should stuck with the kernel version Ubuntu provides.
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