To get back to the original thread about setting up CM4 OS… I have learned something about the printer issues I was having, and I think step 3 should be updated, @jan-peter.
Detailed ramblings are here:
But the upshot is, if I have ONLY:
devterm-thermal-printer-cm4
and
devterm-thermal-printer-cups
installed, then the printer works fine, both from CUPS and from command line echo control.
But if I have:
devterm-thermal-printer
installed, my printer breaks.
It seems like the initial update I did, and presumably anyone might do, uninstalled devterm-thermal-printer-cm4 and installed devterm-thermal-printer, which broke it. After manually removing devterm-thermal-printer and installing devterm-thermal-printer-cm4, the printer worked. And the update and upgrade I did afterward didn’t mess things up and kept only those printer packages.
So I think section 3 should be changed to:
sudo apt update
sudo apt remove devterm-thermal-printer -y
sudo apt install -y devterm-thermal-printer-cm4
sudo reboot
I haven’t tested this on a clean install, but I don’t think devterm-thermal-printer-cups needs to be removed and reinstalled. It probably doesn’t hurt to keep that part though.