I've encountered the same problem when I tried to unmount /mnt/win with nautilus.
UUID=ACB84F65B84F2D60 /mnt/win ntfs nls=utf8,ro,users,uid=1000 0 0 -- Can't unmount UUID= volume as a user https://launchpad.net/bugs/71609 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs