If anyone still experiences this problem (SFTP locations mounting for the user but not for root), this solved it for me:
sudo mv /root/.ssh/known_hosts /root/.ssh/old_known_hosts (You might have an expired or invalid SSH key in /root/.ssh/known_hosts) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/648754 Title: Can't mount ftp location -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs