![]() ![]() Ii linux-modules-extra-5.15.0-75-generic 5.15.0-75.82 amd64 Linux kernel extra modules for version 5.15.0 on 64 bit x86 SMP Ii linux-modules-5.15.0-75-generic 5.15.0-75.82 amd64 Linux kernel extra modules for version 5.15.0 on 64 bit x86 SMP Ii linux-headers-5.15.0-75 5.15.0-75.82 all Header files related to Linux kernel version 5.15.0 Let's take a look which packages are installed for the 5.15.0-75 version: dpkg -l|grep 5.15.0-75 The Linux Kernel is split into multiple packages simply removing the "linux-image…" package won't be enough due to dependencies to other related packages. Once the system has booted, make sure the older Kernel version is active: uname -a At the next system (re-)boot, the GRUB menu should show up. Verify the current GRUB timeout configuration in /etc/default/grub: grep TIMEOUT /etc/default/grub GRUB_TIMEOUT_STYLE=hidden GRUB_TIMEOUT=0 Change the values to: GRUB_TIMEOUT_STYLE=menu GRUB_TIMEOUT=5 Followed by the command sudo update-grub. In case you can't see the GRUB menu while your system is booting, it could either be hidden or simply too fast. But by moving the cursor down to " Advanced options for Ubuntu" and selecting this with, you will have different Kernel versions as boot choice. By default the latest Kernel version is automatically selected and will be used for booting the system. This menu (very quickly) shows up when booting your Ubuntu Linux. If the needed version is not yet installed, you can manually install the older Kernel by appending the wanted version number to the package name: sudo apt-get install linux-image-5.15.0-73-generic Boot older Kernel version from GRUBĪll installed Kernel versions are listed in the Grub Boot Loader Menu. You can verify which Kernel versions are installed with the following command: dpkg -l|grep linux-image Usually (some) older Kernel versions should still be installed on your Ubuntu Linux, unless you have removed them manually or they were purged. In this example we're on a Ubuntu 22.04 LTS (Jammy) and we want to downgrade from 5.15.0-75 to 5.15.0-73. In case you need to downgrade the Kernel version on Ubuntu Linux, here's how you can safely do this. But that' doesn't mean there are zero bugs. They're tested in a lot of environments before being released. Usually minor Kernel upgrades are pretty safe. ![]()
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