tl-setup failed to ever complete installing printers. After I finally killed lpadmin, I got this in tlsetup.log: > 2015-01-29 16:40:26,920: Failed to run printer script '/opt/thinlinc/libexec/add_nearest_printer.sh' > 2015-01-29 16:40:26,920: Output (stdout): > 2015-01-29 16:40:26,920: Using CUPS installed at prefix / > 2015-01-29 16:40:26,920: Using CUPS_SERVERBIN=/lib/cups > 2015-01-29 16:40:26,920: Adding CUPS backend nearest > 2015-01-29 16:40:26,921: Restarting CUPS to make it aware of changes... > 2015-01-29 16:40:26,921: Waiting for CUPS to start... > 2015-01-29 16:40:26,921: Password for root on printhost? I have yet to confirm if it is something odd on my system or if a default install of Fedora 21 behaves like this. Still, we should never lock up like this. We should set things up so that the password prompt will fail and tl-setup can at least move on.
I ran into the same issue when setting up ThinLinc on my Fedora 21. Cups asks for a password because it's trying to change the configuration on another server (printhost). So I did some digging, and I found that when you specify just "-h localhost" to lpadmin, cups seems to respect the configuration in /etc/cups/client.conf and talk to the configured server. If you however specify -h localhost:631, lpadmin will talk to the local cups server and not to the configured server in /etc/cups/client.conf. I tried to look into the code to see why it's doing things this way, but I didn't find anything.
