[ubuntu] How do i access my secong internal hd?

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http://ubuntuforums.org – i formatted a new 1tb hd. i got the hd mounted. however, its under root and i cant copy, cut or paste! also i have to type in my password to access it but i still cannot copy, cut, or paste. how do i change this hd so that i can have full access to it? "second", not secong, my bad... (Hardware)