✅ Quick Checklist

• Take note of the exact error message displayed during the panic
• Check recent changes such as kernel updates, new drivers, or hardware installations
• Ensure all hardware is properly connected and supported
• Have a live USB or rescue environment ready for recovery

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🔧 Basic Troubleshooting Steps

1. Boot into Recovery Mode or use a Live Linux USB
2. Check system logs using:

   journalctl -xb

   or

   dmesg

3. Remove or revert recent kernel updates if the panic started afterward
4. Disconnect external devices to rule out hardware conflicts

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⚙️ Advanced Debugging

Enable Kernel Debugging

1. Edit GRUB at boot by pressing e and adding debug to the kernel line
2. Boot and reproduce the panic; logs will now be more detailed

Use kdump

1. Install kdump:

   sudo apt install kdump-tools

   (Debian/Ubuntu)
2. Enable the service:

   sudo systemctl enable kdump

3. Analyze the crash dump to identify the faulty module or driver

Check Hardware

• Run memory tests with memtest86+
• Inspect CPU, RAM, and peripheral hardware for faults
• Remove or replace suspect components to isolate the issue

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💡 Tips to Prevent Kernel Panics

• Keep your system and kernel up-to-date with stable releases
• Use well-supported drivers; avoid third-party kernel modules unless necessary
• Regularly backup your system to minimize data loss in case of panic
• Monitor system logs for early warning signs of instability

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📊 Summary Table

Step	Tool / Command	Difficulty
Check logs	journalctl, dmesg	Easy
Revert kernel	GRUB boot menu	Medium
Enable debugging	GRUB debug option, kdump	Advanced
Test hardware	memtest86+, physical inspection	Medium