OpenAstro Orange Pi 4 Pro 2026.08.08

OpenAstro OS for Orange Pi 4 Pro — 2026.08.08

First downloadable OpenAstro image for the Orange Pi 4 Pro (Allwinner A733).

What's in it

• Armbian-based Debian 13 (Trixie) minimal CLI image, runs entirely from microSD
• Custom vendor 6.6.98 kernel with CONFIG_HIDRAW=y + CONFIG_USB_HIDDEV=y and a backported upstream fix ("HID: usbhid: paper over wrong bNumDescriptors field") — enables ZWO EAF focusers and EFW filter wheels, which the stock Armbian vendor kernel rejects. Validated: ZWO EAF passes full ASCOM ConformU validation on this image via AlpacaBridge
• WiFi access point out of the box: SSID OpenAstro (2.4 GHz), password 12345678, board at 172.24.1.1
• Ready for AlpacaBridge (apt install alpacabridge after flashing)

Install

1. Download openastro-orangepi4pro.img.xz below
2. Flash to a microSD card (8 GB+) with Raspberry Pi Imager, balenaEtcher, or:

   xzcat openastro-orangepi4pro.img.xz | sudo dd of=/dev/sdX bs=4M status=progress conv=fsync
   

3. Insert the card and power on — the OS runs from the SD card

Login: astro / astro — change it immediately with passwd.

Verify your download: sha256sum -c openastro-orangepi4pro.img.xz.sha256