Linux Troubleshooting Guide

Complete guide to diagnosing and fixing common Linux problems.

Boot & GRUB Issues

System Won't Boot

• GRUB Rescue Mode - Complete GRUB recovery guide
• Black Screen - NVIDIA black screen fix
• Kernel Panic - Boot with older kernel from GRUB menu

Network Problems

• WiFi Not Working - WiFi troubleshooting guide
• Bluetooth Issues - Bluetooth fix guide
• Ethernet Not Detected - Check drivers with lspci

Hardware Issues

• No Sound - Audio troubleshooting
• Touchpad Not Working - Touchpad fix guide
• Graphics Issues - Install proper GPU drivers

Performance Problems

• System Slow - Check CPU/RAM usage with htop
• High Disk Usage - Use iotop to identify processes
• Freezing - Check system logs with journalctl -xe

Application Crashes

• Check logs - journalctl -f for real-time logs
• Missing libraries - Install dependencies
• Permission errors - Check file permissions

General Troubleshooting Steps

1. Check logs - journalctl -xe or /var/log/
2. Update system - Many issues fixed in updates
3. Search online - Copy exact error message to search
4. Check forums - Distribution-specific forums often have solutions
5. Ask for help - Provide system info, error messages, steps tried

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