The message "System error" is coming from PAM. My first guess is that you have a misconfiguration on your system, but this could also be a PAM bug.
Can you check you /var/log/auth.log for messages from PAM? Can you provide you PAM configuration? (/etc/pam.d/passwd and the files linked from there) ** Package changed: shadow (Ubuntu) => pam (Ubuntu) -- passwd - can't login, change password https://bugs.launchpad.net/bugs/546874 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
