I tried to upgrade Ubuntu from Hardy to Intrepid last night, and seem to have killed it.
I can boot into "recovery mode" and the root shell, but it freezes when it tries to start the Gnome environment etc.
In this recovery mode it doesn't seem to be on the network (ie. ifconfig shows the lo bit but not the eth0 bit) And I can't ping or ssh to it.
How can I start networking from this prompt?