I can confirm that, a sudo mkdir /var/run/PolicyKit solve this problem. Now the upgrade is running well.
-- mkdir /var/run/PolicyKit https://bugs.launchpad.net/bugs/193533 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
