According to the log files, slapd has been successfully installed twice before the failure. Did you try to compile openldap from source and installed it in /usr/local before the failed attempt?
** Changed in: openldap (Ubuntu) Status: New => Incomplete -- package slapd 2.4.11-0ubuntu6 failed to install/upgrade: subprocess post-installation script returned error exit status 1 https://bugs.launchpad.net/bugs/300033 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs