Changing the mount point of a partition

Hi CLUG, I have an external backup drive. The partition that has my Linux backup files (via rsync) is recognised as 43a15d01-9f3f-4069-bdab-106832d54ff0/ when I plug my removable drive into a usb port on my computer. I tried to rename the partition. This is what I get: mv 43a15d01-9f3f-4069-bdab-106832d54ff0/ backup/ mv: cannot move `43a15d01-9f3f-4069-bdab-106832d54ff0/’ to `backup/’:…