I'm trying to upgrade a machine to Jaunty over a SSH connection and get the following error:

Upgrading over remote connection not supported
You are running the upgrade over a remote ssh connection with a frontend that does not support this. The upgrade will abort now. Please try without ssh.

This machine is running MythTV and doesn't have keyboard or mouse and is only connected to TV for a display.

Is there any way around this, or do I need to do this the hard way and connect a monitor, keyboard and mouse?

Bob