Comment 6 for bug 1044559

I attempted to fix this, but haven't gotten anywhere. I am seeing the following errors:

Removing maas-region-controller (1.8.0~beta2+bzr3777-0ubuntu1) ...
 * Stopping web server apache2 *
dbconfig-common: dumping pgsql database maasdb to /var/tmp/maas-region-controller.maasdb.2015-04-06-23.29.pgsql.AhZK0m.
dbconfig-common: dropping pgsql database maasdb.
dropping database maasdb: does not exist.
dbconfig-common: revoking privileges for user maas on maasdb.
revoking access to database maasdb from maas@localhost: failed.

However, I found a workaround:

$ sudo -u postgres dropdb maasdb

You can verify that the maasdb database has been dropped by executing:

$ sudo -u postgres psql

I tried adding "sudo -u postgres dropdb maasdb" to the postrm packaging script for maas-region-controller, but that didn't make a difference.