Hi Brian Thanks for taking the time to report this bug in Ubuntu.
As you state, the configuration options for squid3 are different to those for squid2. During the 12.04 development cycle we did review whether an automated upgrade of the configuration file was possible - but it was not. Please see the release notes for 12.04 re manual migration of squid configuration: https://wiki.ubuntu.com/PrecisePangolin/ReleaseNotes/UbuntuServer#Applications Marking this bug as 'Invalid' as this is a know manual upgrade requirement. Thanks ** Changed in: squid3 (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to squid3 in Ubuntu. https://bugs.launchpad.net/bugs/995861 Title: package squid3 3.1.19-1ubuntu3 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/squid3/+bug/995861/+subscriptions -- 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