Linux rmmod Guide

Linux rmmod Guide

Complete beginner-friendly guide to rmmod on Linux, covering Arch Linux, CachyOS, and other distributions including removing kernel modules, unloading drivers, and module removal.

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Table of Contents

1. Understanding rmmod
2. rmmod Basics
3. Removing Modules
4. Force Removal
5. Troubleshooting

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Understanding rmmod

What is rmmod?

rmmod (remove module) unloads kernel modules.

Uses:

• Remove modules: Unload kernel modules
• Manual removal: Remove modules manually
• Low-level: Direct module removal
• Module management: Manage modules

Note: Prefer modprobe -r for automatic dependency handling.

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rmmod Basics

Remove Module

Basic usage:

# Remove module
sudo rmmod module-name

# Unloads module

Module Name

Just name:

# Module name only (not path)
sudo rmmod module-name

# Not: module.ko

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Removing Modules

Check Dependencies

Verify dependencies:

# Check if in use
lsmod | grep module-name

# Shows if module is loaded and used

Force Removal

Force unload:

# Force removal (dangerous)
sudo rmmod -f module-name

# -f = force (removes even if in use)

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Force Removal

Warning

Be careful:

# Force removal can cause issues
# Only use if necessary
sudo rmmod -f module-name

# May cause system instability

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Troubleshooting

Module in Use

Check usage:

# Check what's using module
lsmod | grep module-name

# Unload dependent modules first
sudo modprobe -r dependent-module
sudo rmmod module-name

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Summary

This guide covered rmmod usage, module removal, and low-level module management for Arch Linux, CachyOS, and other distributions.

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Next Steps

• modprobe Guide - Recommended method
• insmod Guide - Load modules
• Kernel Management - Kernel management
• rmmod Documentation: man rmmod

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This guide covers Arch Linux, CachyOS, and other Linux distributions. For distribution-specific details, refer to your distribution's documentation.