Postgres Upgrade Interrupted, pg_version now inconsistent <p>Recently attempted an upgrade from 9.3 to 9.4 on an Ubuntu 14.04 Postgres installation, something went awry and the system lost power midway through the upgrade. Now the cluster won't start and when I try to move the data file to a new system and start it, there are inconsistencies in the data files and PG_VERSIONs are varied between 9.3 and 9.4.</p> <p>Is there any way to recover and make consistent the files to launch under a new cluster?</p>