Kyle I've taken a look at the pre-installation script and it will fail with an exit status of 1 if any queue files in /var/lib/mailman/qfiles.
I could re-produce this error message by creating a file in /var/lib/mailman/qfiles - I was then presented with the option to continue regardless or abort the installation. Did you get any prompted during the upgrade about this directory containing files? I got the following error message (and advice which might help): The directory /var/lib/mailman/qfiles contains files. It needs to be empty for the upgrade to work properly. You can try to handle them by: - Stop new messages from coming in (at the MTA level). - Start a mailman queue runner: /etc/init.d/mailman start - Let it run until all messages are handled. If they don't all get handled in a timely manner, look at the logs to try to understand why and solve the cause. - Stop it: /etc/init.d/mailman stop - Retry the upgrade. - Let messages come in again. You can also decide to simply remove the files, which will make Mailman forget about (and lose) the corresponding emails. . If these files correspond to shunted messages, you have to either delete them or unshunt them (with /var/lib/mailman/bin/unshunt). Shunted messages are messages on which Mailman has already abandoned any further processing because of an error condition, but that are kept for admin review. You can use /var/lib/mailman/bin/show_qfiles to examine the contents of the queues. . You have the option to continue installation regardless of this problem, at the risk of losing the messages in question or breaking your Mailman setup. Thanks ** Changed in: mailman (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to mailman in ubuntu. https://bugs.launchpad.net/bugs/723891 Title: package mailman 1:2.1.13-1 failed to install/upgrade: subprocess new pre-installation script returned error exit status 1 -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs