In this article, you will learn everything about Linux kernel boot parameters, how to use them, troubleshoot startup issues, and optimize system performance.

This comprehensive guide walks you through the process of installing and trying out various Linux kernels in Linux Mint. Whether you're looking to improve performance, compatibility, or just curious about the latest features, this article provides all the information you need to safely explore different kernels.

If you need to downgrade the Kernel version on Ubuntu Linux, here's how you can safely do this with the linux-image and related packages.

ck@ubuntu:~$ dpkg -l|grep linux-image
ii linux-image-5.15.0-73-generic 5.15.0-73.80 amd64 Signed kernel image generic
ii linux-image-5.15.0-75-generic 5.15.0-75.82 amd64 Signed kernel image generic

ck@ubuntu:~$ 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. At the next system (re-)boot, the GRUB menu should show up.