Can't open "File System" in file manager

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http://forums.fedoraforum.org – So after finding a workaround and fixing permissions regarding my external Hd problem from earlier, I now cannot access the "file system." I still have access to the desktop and my user folder, as well as links I had already made to folders such as "www" within the "var" which is direction inside the root file system. However, I cannot access the root directory to see the other folders inside (like "mnt"). How do I change the permissions of the root directory? I tried using chmod on /root, both from the "~" terminal and also from the "d (HowTos)