It's probably a bug then. Reassigning this to the debconf package for further triaging, as I have no guesses as to the cause.
** Package changed: pam (Ubuntu) => debconf (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/792414 Title: package libpam0g 1.1.2-2ubuntu8.3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/debconf/+bug/792414/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
