1. $ pkexec mc
2. ==== AUTHENTICATING FOR org.freedesktop.policykit.exec ====
3. Authentication is needed to run `/usr/bin/mc' as the super user
4. Authenticating as: leo
5. Password:
6. ==== AUTHENTICATION COMPLETE ====
7. **
8. ERROR:../polkit-126/src/programs/pkexec.c:143:pam_conversation_function: code should not be reached
9. Bail out! ERROR:../polkit-126/src/programs/pkexec.c:143:pam_conversation_function: code should not be reached
10. Aborted