Troubleshooting Linux

🧹 Linux Disk Cleanup Guide

When /dev/root hits 100% usage, your system might become unstable. This guide helps free up space quickly and safely.

🔍 Check Disk Usage

Run this command to identify the top space-consuming directories:

sudo du -h --max-depth=1 / | sort -hr | head -n 10

📦 Remove Unused Packages

sudo apt-get autoremove
sudo apt-get clean

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📁 Delete Cache & Temp Files

User Cache

rm -rf ~/.cache/*

System Temp

sudo rm -rf /tmp/*

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📜 Clear System Logs

Truncate log files in /var/log:

sudo truncate -s 0 /var/log/*.log

🚨 Emergency Access

If the system is unresponsive, boot using a Live USB and free up space from there.

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✅ Notes

• Always back up important files before deletion.

• For critical environments, use disk management tools like ncdu or bleachbit.

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Last Updated: 30/07/2025 by JC