Comment 2 for bug 1850672

Trusty verification, in two parts:

a) following the [testing] section, i.e., upgrading from precise, to trusty, then to trusty-updates
b) almost the same setup, but upgrading from precise to trusty with the u-a-t proposed package, without going through the intermediary current u-a-t from trusty-updates.

Since the logs are rather long, I'll do these in separate comments