Armbian does not come with some sort of admin console. Please elaborate. Try different patch cable. moved

where exactly does this error show up? while downloading with your browser? while writing to the sdcard? while booting? Please elaborate. debug boot issues: https://debug.armbian.de

@igor I think what you're suggesting is that I build my own Ubuntu 24.04 image using the info on the page; am I correct? I could be talked into this but first I would have to build a 24.04 system - my three desktops and one laptop are all running 25.04, soon to move to 25.10. I could sacrifice the "old beater"... Reading these instructions, I believe that running 24.04 on an X86/64 machine I could build an ARM system; does that make sense? This comment worries me though: I'm trying to create a minimal IOT image; is that a separate pathway? Thanks in advance, and as always thanks for Armbian!

Hi @loeriver, Yes, it depends a bit on what brand/type and how you connect the USB to serial converter. The ones i use to monitor the serial console on all my SBCs have these spurious events as well, even when I do not connect the +5Vdc on the serial/UART end. For me they are sometimes preventing a full board shutdown as they seem to leach power to the SBC (not sure how this is happening electrically, perhaps some pull-ups allowing current to flow from RX into the Vcc of the board?). You could try to remove the dongle from the system to see if that has any effect to rule this out completely. Groetjes,

I have the default radxa image rock-5b-plus_bookworm_kde_b2 image with the fan working :- https://github.com/radxa-build/rock-5b-plus/releases/download/rsdk-b2/rock-5b-plus_bookworm_kde_b2.output.img.xz I/We need to try and find how this was built and the Linux DTD file the `uname -a` kernel reports as "Linux rock-5b-plus 6.1.84-1-rk2410" kernel. rsetup :- https://docs.radxa.com/en/rock5/rock5b/getting-started/interface-usage/fan https://github.com/radxa-pkg/rsetup