[ubuntu] external hard drive not detected

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http://ubuntuforums.org – My external hard drive is not detected when I plug it into the USB port in Ubuntu. When I dual boot windows 7 it says the drive is "corrupted and unreadable." When I looked at solutions in windows I did find one program that retrieved files but wiped out the file names. This was the best that I could find using google. I was really hoping that there was something I could do in Ubuntu to access the hard drive before I'm forced to reformat it and wipe all the data. thanks. (Hardware)