Starting from version 20220517, support for running the AltLinux system
https://en.altlinux.org/Main_Page
on BPI R2 pro has been added. To start the system. Download the image.
unpack, burn to SD card. Download and burn the bootloader for BPI R2 pro to the SD card.
Important. You need to record the bootloader after recording the system. Connect to the device and turn on the power. The system starts automatically.