This log seems to show only a successful configuration of libpam0g. Since the package is now installed for you, I'm going to close this bug report as invalid since it doesn't appear to be reproducible.
** Changed in: pam (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/740259 Title: package libpam0g 1.1.2-2ubuntu5 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs