Following the instructions here:
I downloaded jetbot-042_nano-4gb-jp441.zip, and used Etcher to flash the image to my SD card. Everything went fine. But the resulting system does not seem to have command “sudo”. I checked /usr/bin, it’s not there.
I found it rather strange, but google didn’t result anything helpful. Did I forget something obvious?
Thank you very much for your kind help, much appreciated.
P.S. JetBot worked alright, so far. But I could only shut it down by pulling the battery plug, because there was no sudo command.