Turns out it WAS a non-standard script. I think it was added by newell when he was testing httpboot on our system. But I've deleted the errant script and while I can't re-test this to be sure since the Focal kernels have disappeared from the Commissioning kernel option, I'm pretty sure this fixes it.
Ok, thanks for the poke ack.
Turns out it WAS a non-standard script. I think it was added by newell when he was testing httpboot on our system. But I've deleted the errant script and while I can't re-test this to be sure since the Focal kernels have disappeared from the Commissioning kernel option, I'm pretty sure this fixes it.