Why Apt Autoremove Leaves Old Kernels Behind
apt autoremove only removes auto-installed kernels. Learn why manual installs, held packages, and the running kernel stay behind, and how to safely purge them.
Category: Kernel Updates
Linux Kernel Updates Without Reboot: Live Patch vs Reboot
Live patching fixes CVEs in place without rebooting, but kernel version upgrades need kexec or a restart. Learn which tool solves your actual problem.
Ubuntu Kernel Rollback: Boot the Safe GRUB Entry
Boot an older Ubuntu kernel safely through GRUB, verify the cause, preserve a fallback, and remove or set defaults only after the system is stable.
Automatic Linux Kernel Upgrades: Setup Guide
Set up automatic Linux kernel upgrades safely with unattended-upgrades or live patching. Learn when to automate, how to verify updates, and rollback strategies.
Auto-Replace OpenWrt Kernel Config Without Losing Changes
OpenWrt generates kernel config from layered fragments, so this guide shows how to edit, persist, and verify changes without losing them on clean builds.
How to Update Linux Kernel Safely by Distro
Update your Linux kernel using apt, dnf, pacman, or zypper depending on your distribution. Learn the right command and why rebooting matters.