You are correct Barge and cBarge only work with shared lines.There is no way to Barge a call on a non-shared line Have a look;
Barge allows a user to get added to a remotely active call that is on a shared line. Remotely active calls for a line comprise active (connected) calls that are made to or from another device that shares a directory number with the line. Barge supports this type of remote-in-use call.
Barge Using Built-In Conference Barge Softkey
You can use the Barge softkey only in the remote-in-use call state.
Barge Using Shared Conference cBarge Softkey
You can use the cBarge softkey only in the remote-in-use call state
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.