docs/install/raspberry-pi.md
Run a persistent, always-on OpenClaw Gateway on a Raspberry Pi. Since the Pi is just the gateway (models run in the cloud via API), even a modest Pi handles the workload well.
1. Download [Raspberry Pi Imager](https://www.raspberrypi.com/software/).
2. Choose OS: **Raspberry Pi OS Lite (64-bit)**.
3. In the settings dialog, pre-configure:
- Hostname: `gateway-host`
- Enable SSH
- Set username and password
- Configure WiFi (if not using Ethernet)
4. Flash to your SD card or USB drive, insert it, and boot the Pi.
# Set timezone (important for cron and reminders)
sudo timedatectl set-timezone America/Chicago
```
# Reduce swappiness for low-RAM devices
echo 'vm.swappiness=10' | sudo tee -a /etc/sysctl.conf
sudo sysctl -p
```
Follow the wizard. API keys are recommended over OAuth for headless devices. Telegram is the easiest channel to start with.
```bash
ssh user@gateway-host 'openclaw dashboard --no-open'
```
Then create an SSH tunnel in another terminal:
```bash
ssh -N -L 18789:127.0.0.1:18789 user@gateway-host
```
Open the printed URL in your local browser. For always-on remote access, see [Tailscale integration](/gateway/tailscale).
Use a USB SSD -- SD cards are slow and wear out. A USB SSD dramatically improves performance. See the Pi USB boot guide.
Enable module compile cache -- Speeds up repeated CLI invocations on lower-power Pi hosts:
grep -q 'NODE_COMPILE_CACHE=/var/tmp/openclaw-compile-cache' ~/.bashrc || cat >> ~/.bashrc <<'EOF' # pragma: allowlist secret
export NODE_COMPILE_CACHE=/var/tmp/openclaw-compile-cache
mkdir -p /var/tmp/openclaw-compile-cache
export OPENCLAW_NO_RESPAWN=1
EOF
source ~/.bashrc
Reduce memory usage -- For headless setups, free GPU memory and disable unused services:
echo 'gpu_mem=16' | sudo tee -a /boot/config.txt
sudo systemctl disable bluetooth
Out of memory -- Verify swap is active with free -h. Disable unused services (sudo systemctl disable cups bluetooth avahi-daemon). Use API-based models only.
Slow performance -- Use a USB SSD instead of an SD card. Check for CPU throttling with vcgencmd get_throttled (should return 0x0).
Service will not start -- Check logs with journalctl --user -u openclaw-gateway.service --no-pager -n 100 and run openclaw doctor --non-interactive. If this is a headless Pi, also verify lingering is enabled: sudo loginctl enable-linger "$(whoami)".
ARM binary issues -- If a skill fails with "exec format error", check whether the binary has an ARM64 build. Verify architecture with uname -m (should show aarch64).
WiFi drops -- Disable WiFi power management: sudo iwconfig wlan0 power off.