Comment 18 for bug 1204507

This has fixed the problem for me too, but it potentially has introduced another one.

When upgrading maas from raring-updates, maas-dns is removed which is causing resolution failures due to my maas nodes pointing at my region controller for DNS (which is no longer listening for queries).

Trying to (re-)install maas-dns failes with the following error:

  manager@ubuntu-maas-01:~$ sudo apt-get install --dry-run maas-dns
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  Some packages could not be installed. This may mean that you have
  requested an impossible situation or if you are using the unstable
  distribution that some required packages have not yet been created
  or been moved out of Incoming.
  The following information may help to resolve the situation:

  The following packages have unmet dependencies:
   maas-dns : Depends: maas-region-controller (= 1.3+bzr1461+dfsg-0ubuntu2.1) but 1.3+bzr1461+dfsg-0ubuntu2.2 is to be installed
  E: Unable to correct problems, you have held broken packages.

Looks like a minor version difference, but I'm very new to apt and would need guidance if there is perhaps an easy way to fix it.