The link you provided (http://askubuntu.com/q/787244/25388) shows you solved the dependency problem (it's indeed a matter of installing deja- dup AND deja-dup-backend-gvfs), so I'm closing this bug. See also bugs 1606449 and 1641423 for more about this dependency issue.
The other problem you mention in that AskUbuntu question is related to permissions on a NTFS volume mounted as root, if I understand correctly. This is unrelated to the dependency issue and this bug report. Also, Déjà Dup is supposed to be used by a normal user to back up their own user data to a location that is writable by that user. There are better tools for root to back up a complete disk or several users' data. This is not the focus of Déjà Dup. ** Changed in: deja-dup (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1592735 Title: deja-dup 34.2 fails on dependencies To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/deja-dup/+bug/1592735/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs