Debian 13 on an Orange Pi 4 Pro
Flash the ready-made OpenAstro image to a microSD card and the Orange Pi 4 Pro boots straight into a networked gear-control server. No installer and no internal storage to touch. The board runs entirely from the card.

Flash the image
-
Download the latest
openastro-orangepi4pro.img.xzfrom the releases page. -
Write it to a microSD card with balenaEtcher, Raspberry Pi Imager, or from a terminal:
xzcat openastro-orangepi4pro.img.xz | sudo dd of=/dev/sdX bs=4M status=progress conv=fsyncReplace
/dev/sdXwith your microSD device. -
Insert the card and power on. That's it. The board runs entirely from the card.
Full details, build scripts, and the kernel changelog live in the openastro-orangepi4pro repository.
The image ships a custom kernel with HIDRAW enabled and a backported HID descriptor fix for ZWO EAF focusers and EFW filter wheels, validated on hardware.
Connect to the board
The image comes up with these defaults:
| Setting | Value |
|---|---|
| Hostname | openastro |
| Username / password | astro / astro |
| WiFi access point | OpenAstro (2.4 GHz), password 12345678 |
| WiFi AP address | 172.24.1.1 |
| Ethernet | DHCP |
Connect over Ethernet or join the OpenAstro WiFi network, then SSH in. Use
one of the following SSH clients depending on your operating system:
- Linux: Terminal (built-in)
- macOS: Terminal (built-in)
- Windows: MobaXterm (or PuTTY, or Windows Terminal)
ssh astro@openastro
Change the default password right away, then update the operating system:
passwd
sudo apt update && sudo apt full-upgrade -y && sudo reboot
Install AlpacaBridge
Your board is ready. Continue to Install & Configure AlpacaBridge to add the OpenAstro APT repository, install the service, and set up your devices.