Linux depmod Guide

Linux depmod Guide

Complete beginner-friendly guide to depmod on Linux, covering Arch Linux, CachyOS, and other distributions including generating module dependencies, kernel module database, and dependency management.

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Table of Contents

1. Understanding depmod
2. depmod Basics
3. Generating Dependencies
4. Dependency Database
5. Troubleshooting

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Understanding depmod

What is depmod?

depmod generates module dependency file.

Uses:

• Generate dependencies: Create dependency file
• Module database: Build module database
• Dependency management: Manage module dependencies
• System maintenance: Maintain module system

Why it matters:

• Module dependencies: Enables dependency resolution
• modprobe: Required for modprobe to work
• System maintenance: Maintains module system

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depmod Basics

Generate Dependencies

Basic usage:

# Generate dependencies
sudo depmod

# Creates modules.dep file

Specific Kernel

For kernel:

# Specific kernel version
sudo depmod 6.1.0-arch1

# Generates for specific kernel

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Generating Dependencies

Verbose Mode

Show progress:

# Verbose mode
sudo depmod -v

# -v = verbose (shows progress)

Force Update

Force generation:

# Force update
sudo depmod -a

# -a = all (all kernels)

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Dependency Database

Database Location

Find database:

# Dependency file location
ls -la /lib/modules/$(uname -r)/modules.dep

# Or
cat /lib/modules/$(uname -r)/modules.dep

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Troubleshooting

depmod Errors

Check modules:

# Verify kernel modules
ls /lib/modules/$(uname -r)/kernel

# Check kernel version
uname -r

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Summary

This guide covered depmod usage, dependency generation, and module database for Arch Linux, CachyOS, and other distributions.

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Next Steps

• modprobe Guide - Module management
• lsmod Guide - List modules
• Kernel Management - Kernel management
• depmod Documentation: man depmod

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