I think we're down to the maas issue that Raphael described now. Postgres is fixed (I marked bug 1427950 fix-released). See full log attached, but here is what I see now. $ apt-cache policy maas maas: Installed: (none) Candidate: 1.7.1+bzr3341-0ubuntu1 Version table: 1.7.1+bzr3341-0ubuntu1 0 500 http://nova.clouds.archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages $ sudo apt-get install -qy maas Reading package lists... Building dependency tree... Reading state information... The following extra packages will be installed: apache2 apache2-bin apache2-data apache2-utils authbind bind9 bind9utils ... dbconfig-common: writing config to /etc/dbconfig-common/maas-region-controller.conf Creating config file /etc/dbconfig-common/maas-region-controller.conf with new version creating postgres user maas: success. verifying creation of user: success. creating database maasdb: success. verifying database maasdb exists: success. dbconfig-common: flushing administrative password [31;1mSystem check identified some issues: WARNINGS: [33;1m?: (1_6.W001) Some project unittests may not execute as expected. HINT: Django 1.6 introduced a new default test runner. It looks like this project was generated using Django 1.5 or earlier. You should ensure your tests are all running & behaving as expected. See https://docs.djangoproject.com/en/dev/releases/1.6/#new-test-runner for more information.[0m [0mSyncing... Traceback (most recent call last): File "/usr/sbin/maas-region-admin", line 16, in management.execute_from_command_line() File "/usr/lib/python2.7/dist-packages/django/core/management/__init__.py", line 385, in execute_from_command_line utility.execute() File "/usr/lib/python2.7/dist-packages/django/core/management/__init__.py", line 377, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/usr/lib/python2.7/dist-packages/django/core/management/base.py", line 288, in run_from_argv self.execute(*args, **options.__dict__) File "/usr/lib/python2.7/dist-packages/django/core/management/base.py", line 338, in execute output = self.handle(*args, **options) File "/usr/lib/python2.7/dist-packages/django/core/management/base.py", line 533, in handle return self.handle_noargs(**options) File "/usr/lib/python2.7/dist-packages/south/management/commands/syncdb.py", line 82, in handle_noargs old_app_store, cache.app_store = cache.app_store, SortedDict([ AttributeError: 'Apps' object has no attribute 'app_store' dpkg: error processing package maas-region-controller (--configure): subprocess installed post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of maas: maas depends on maas-region-controller (= 1.7.1+bzr3341-0ubuntu1); however: Package maas-region-controller is not configured yet. dpkg: error processing package maas (--configure): dependency problems - leaving unconfigured Setting up maas-dns (1.7.1+bzr3341-0ubuntu1) ... No apport report written because the error message indicates its a followup error from a previous failure. [31;1mSystem check identified some issues: WARNINGS: [33;1m?: (1_6.W001) Some project unittests may not execute as expected. HINT: Django 1.6 introduced a new default test runner. It looks like this project was generated using Django 1.5 or earlier. You should ensure your tests are all running & behaving as expected. See https://docs.djangoproject.com/en/dev/releases/1.6/#new-test-runner for more information.[0m [0m[31;1mSystem check identified some issues: WARNINGS: [33;1m?: (1_6.W001) Some project unittests may not execute as expected. HINT: Django 1.6 introduced a new default test runner. It looks like this project was generated using Django 1.5 or earlier. You should ensure your tests are all running & behaving as expected. See https://docs.djangoproject.com/en/dev/releases/1.6/#new-test-runner for more information.[0m [0m[31;1mSystem check identified some issues: WARNINGS: [33;1m?: (1_6.W001) Some project unittests may not execute as expected. HINT: Django 1.6 introduced a new default test runner. It looks like this project was generated using Django 1.5 or earlier. You should ensure your tests are all running & behaving as expected. See https://docs.djangoproject.com/en/dev/releases/1.6/#new-test-runner for more information.[0m [0mSetting up libnss3-nssdb (2:3.17.4-0ubuntu1) ... Setting up libnss3:amd64 (2:3.17.4-0ubuntu1) ... Setting up librados2 (0.87-0ubuntu5) ... Setting up librbd1 (0.87-0ubuntu5) ... Setting up tgt (1:1.0.43-0ubuntu4) ... Setting up maas-cluster-controller (1.7.1+bzr3341-0ubuntu1) ... invoke-rc.d: maas-clusterd.service doesn't exist but the upstart job does. Nothing to start or stop until a systemd or init job is present. Processing triggers for libc-bin (2.19-15ubuntu2) ... Processing triggers for ureadahead (0.100.0-19) ... Errors were encountered while processing: maas-region-controller maas E: Sub-process /usr/bin/dpkg returned an error code (1) $ sudo pg_lsclusters Ver Cluster Port Status Owner Data directory Log file 9.4 main 5432 online postgres /var/lib/postgresql/9.4/main /var/log/postgresql/postgresql-9.4-main.log