I run Ubuntu 12.04 on an old iMac G3. Since the GUI is too resource heavy I have disabled the display manager (lightdm) and am currently running the computer in console mode. How do I establish a mobile broadband connection from the command line?
When I connect the modem it shows up as ttyUSB0 in the Network Manager device list:
$ nmcli dev
DEVICE TYPE STATE
ttyUSB0 gsm disconnected
eth0 802-3-ethernet unavailable
I have also copied a working connection configuration file from another computer to
/etc/NetworkManager/system-connections/Com Hem Default 1
. Still, when I try to connect I get an "unknown connection" error:
$ nmcli con up id "Com Hem Default 1"
Error: Unknown connection: Com Hem Default 1.
Any clues?