Checking the log gives this error as the root cause. It looks like something on purpose by the package so maybe not a problem but I'll reassign it anyway.
Preparing to replace zoneminder 1.24.2-7ubuntu1 (using .../zoneminder_1.24.2-8ubuntu1_amd64.deb) ... Stopping ZoneMinder: success Aborting installation of zoneminder due to non-default symlinks in /usr/share/zoneminder for the images and/or events directory, which could result in loss of data. Please move your data in each of these directories to /var/cache/zoneminder before installing zoneminder from the package. dpkg: error processing /var/cache/apt/archives/zoneminder_1.24.2-8ubuntu1_amd64.deb (--unpack): subprocess new pre-installation script returned error exit status 1 ** Package changed: dpkg (Ubuntu) => zoneminder (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/799013 Title: package zoneminder 1.24.2-7ubuntu1 failed to install/upgrade: ErrorMessage: package zoneminder is already installed and configured To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zoneminder/+bug/799013/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs