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This is normally a transient situation; running the upgrade again should resolve the issue. If is does not work you could try locating the process locking the file by running: sudo fuser -v /var/cache/debconf/config.dat Killing the process and re-running the upgrade should then resolve the issue. Thanks ** Changed in: openvpn (Ubuntu) Importance: Undecided => Low ** Changed in: openvpn (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openvpn in Ubuntu. https://bugs.launchpad.net/bugs/787558 Title: package openvpn 2.1.3-2ubuntu3 failed to install/upgrade: subprocess installed post-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