Kernel

Kernel configuration, version management, and updates.

Oct 23, 2026 • 5 min read

How to Check the Kernel Version in Linux

Run uname -r to print the running Linux kernel version. This guide also covers hostnamectl, /proc/version, listing installed kernels, and spotting a pending reboot.

Gold hexagonal tiles with terminal and gear icons and the label modprobe command

Oct 4, 2026 • 11 min read

modprobe Command in Linux: Load and Manage Kernel Modules

modprobe adds and removes Linux kernel modules along with their dependencies. See how to pass parameters, blacklist drivers, load modules at boot, and fix errors.

Rising memory usage bars above a Linux log with a highlighted Killed process entry

Sep 30, 2026 • 9 min read

How to Diagnose OOM Killer Events in Linux

Diagnose Linux OOM kills with dmesg and journalctl, identify affected processes, check service memory limits, and investigate systemd-oomd events.

Sep 7, 2026 • 5 min read

lsmod Command in Linux: List Kernel Modules

Display all currently loaded Linux kernel modules with lsmod. This guide covers output format, filtering, and related module management commands.

Stylized grid of interconnected kernel modules above the text lsmod command

Jun 6, 2026 • 3 min read

How to Set Up Automatic Kernel Updates on Linux

Set up automatic, rebootless Linux kernel updates with live patching from Canonical Livepatch (Ubuntu Pro), and learn when unattended upgrades are enough.

Mar 27, 2026 • 3 min read

sysctl Command in Linux: View and Change Kernel Parameters

Learn how to use the sysctl command to view, set, and persist Linux kernel parameters, with practical examples for common settings.

Mar 16, 2026 • 6 min read

dmesg Command in Linux: Read and Filter Kernel Messages

How to use the dmesg command in Linux to read kernel ring buffer messages, filter by log level and facility, display human-readable timestamps, and watch for new events in real time.

dmesg command showing Linux kernel messages

Feb 7, 2026 • 4 min read

Rmmod Command in Linux

Learn how to use the rmmod command to remove kernel modules in Linux, including options, troubleshooting, and best practices.