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Welcome to the raspi_overlay-auto-update wiki!

OverlayFS Safe Auto Update

This project provides a safe, fault-tolerant update mechanism for Raspberry Pi / Debian systems using OverlayFS and systemd.

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Key Features

• Atomic 2-stage update flow
• Overlay write protection
• Scheduled auto updates (systemd timer)
• Cooldown protection
• LED and watchdog status monitoring
• Dry-run simulation mode

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Quick Install

git clone https://github.com/Tetsuya1126/raspi_overlay-auto-update.git
cd raspi_overlay-auto-update
sudo bash install.sh

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## Dry-run

sudo overlay-auto-update.sh --dry-run