We don't have resources to deal with this question, but I think, in case of this hardware, there is just firmware package (armbian-firmware / linux-firmware) that fits into this. Perhaps some other util. There must be some scripts to scan Debian packages and tell? From my head, I remember iozon3 package (might not be by default on minimal) that is non-free https://packages.debian.org/bookworm/iozone3

Great reply , I'll knock up a connection! much easier than anything else. I work in modern/future vehicles so the spikes and dips are not an issue for me as none of them have engines.

Nice work. We've got the sudo update stuff twice though. Also I think the last image is in the wrong place?

rk3326 and rk3328 are not the same thing, neither is px30. Definitely no chances to run this on those SoCs; I don't know if there are images for boards using px30/rk3326 in armbian.

https://www.armbian.com/olimex-lime-2/ Does the image come with and install non free software on the computer? If so is there documentation showing how to do a fully free software installation of the Armbian_community_25.11.0-trunk.546_Lime2_trixie_current_6.12.58_minimal.img image? Free software is software you can use, share, modify and redistribute. Thank you.