I know the command to get to your Desktop is cd ~/Desktop. This however does not work as the root user. However I need to be the root user because I would like to move a file, from my desktop into my /mnt/disk folder so that I can mount my .iso. I can't click-and-drag either as I do not have permission. I've been trying for about an hour and am quite frustrated; so any and all help would be much appreciated. Thank you.