Batman working (I think), now how to make it wireless?

[jeff]

@GrumpyChops

must load driver with rawmode=1

Is, in my experience, an indication that the -CT driver and firmware are being loaded.

I can't comment personally on the BT Hub 5A, though if you continue on the thread you linked

19.07 BT Hub 5A: Mesh not working on 5ghz radio -> must load driver with rawmode=1 to add mesh interfaces

Cheers! I had tried replacing the -ct version with the other versions, and it hadn't worked, but I tried again thanks to your advice and that fixed it. I guess I must have forgot to reboot, rebooted the wrong router, or done something else equally stupid. Mesh starts up ok and is working using ath10k-firmware-qca988x, which installs /lib/firmware/ath10k/QCA988X/hw2.0/firmware-5.bin, in place of firmware-2.