Comment 2 for bug 1172900

sudo dpkg-reconfigure maas-region-controller
/usr/sbin/dpkg-reconfigure: maas-region-controller is broken or not fully installed

sudo apt-get install maas-region-controller
Reading package lists... Done
Building dependency tree
Reading state information... Done
maas-region-controller is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 55 not upgraded.
3 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue [Y/n]?
Setting up maas-region-controller (1.3+bzr1461+dfsg-0ubuntu2) ...
dpkg: error processing maas-region-controller (--configure):
 subprocess installed post-installation script returned error exit status 10
E: Sub-process /usr/bin/dpkg returned an error code (1)

dpkg -l | grep maas-region-controller
iF maas-region-controller 1.3+bzr1461+dfsg-0ubuntu2 all Ubuntu MAAS Server

tail -f /var/log/dpkg.log
2013-04-30 22:38:24 configure maas-region-controller:all 1.3+bzr1461+dfsg-0ubuntu2 <none>
2013-04-30 22:38:24 status half-configured maas-region-controller:all 1.3+bzr1461+dfsg-0ubuntu2

ls -a /var/cache/apt/archives/*maas*
/var/cache/apt/archives/maas_1.3+bzr1461+dfsg-0ubuntu2_all.deb
/var/cache/apt/archives/maas-cli_1.3+bzr1461+dfsg-0ubuntu2_all.deb
/var/cache/apt/archives/maas-cluster-controller_1.3+bzr1461+dfsg-0ubuntu2_all.deb
/var/cache/apt/archives/maas-common_1.3+bzr1461+dfsg-0ubuntu2_all.deb
/var/cache/apt/archives/maas-dhcp_1.3+bzr1461+dfsg-0ubuntu2_all.deb
/var/cache/apt/archives/maas-dns_1.3+bzr1461+dfsg-0ubuntu2_all.deb
/var/cache/apt/archives/maas-region-controller_1.3+bzr1461+dfsg-0ubuntu2_all.deb
/var/cache/apt/archives/python-django-maas_1.3+bzr1461+dfsg-0ubuntu2_all.deb
/var/cache/apt/archives/python-maas-client_1.3+bzr1461+dfsg-0ubuntu2_all.deb
/var/cache/apt/archives/python-maas-provisioningserver_1.3+bzr1461+dfsg-0ubuntu2_all.deb