It seems that you tried to install cacti and cacti-spine originally without a working database. I can't really follow what happened after that, but the current DpkgTerminalLog.txt does NOT show issues with installation, but issues with removal.
If you still want cacti to be installed, I recommend that you first purge cacti (*ignore* errors instead of *abort* when prompted by debconf, such that the removal can proceed) and purge mysql-server-5.6 after as well. After that, first install mysql-server and then install cacti. With a working mysql-server, the configuration of cacti should work. The issue seems to be that your first installation of cacti failed due to a missing database server, but the /etc/cacti/debian.php file that was generated contained the password for cacti to log in. After you installed the server, cacti tried to use that generated password, but that wasn't (and can't be) communicated to the database server. An alternative is to set the cacti password manually from within mysql and then dpkg-reconfigure cacti and provide the manually set password when asked for. Paul ** Changed in: cacti (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1641891 Title: package cacti 0.8.8f+ds1-4ubuntu4 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cacti/+bug/1641891/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs