The nand-sata-install script is indeed quite old and not very actively maintained anymore. A common modern replacement on Odroid XU4 (and similar boards) is to use the Armbian installer built into armbian-config. You can run: Bash sudo armbian-config Then go to System → Install (or Install to SATA/USB/NVMe depending on your setup). Many people find it more reliable than the old nand-sata-install. Alternatively, you can do it manually with dd for U-Boot + rsync for the rootfs, but armbian-config is usually the easiest route these days. If you run into any issues with it, feel free to share the output and I can help walk you through it.

Ok, then. But at least remove that "It works out of the box" statement (which is not true), so that other people don't waste their time, like I did. This Armbian OS, at this time, does not support the NanoPi M5 board.

Theoretically no, because the game won't occupy all the ram, so when you start to fill it up, the kernel should start compressing and move other stuff to zram, but theory is not always how it works in practicality. As for how to disable zram, add zswap.enabled=0 to your kernel parameters and it won't be available after a reboot. To stop zram during operation, IIRC, stop (not disable) systemd-zram-setup@zram0.service. If it's not you should be able to figure out what to stop by listing relevant unit files with systemctl --type swap

There's nearly 400 boards in the Armbian build system. There are not nearly that many people actively supporting those configurations, so not all are seeing the level of care and attention to detail that we'd all like to see. There are other threads of folks discussing Rockchip hardware acceleration, which seems relatively new. You may need a more recent kernel (7.x mainline), and/or other bleeding edge software which is not part of the Ubuntu 26 baseline.

Last photo just to the right of the rk3528 at 3 o'clock are the most likely (the two round gold pins). With power off check with a multi meter if one of them is connected to ground. Then with power applied use an oscilloscope to check if the other one has a clock signal on it. If it has these are probably the maskrom pins. Credit to @Hqnicolas