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Possible Duplicate:
How do I add myself back as a sudo user?

I have just installed Ubuntu 12.04, Now I am using standard user, but I want to change my user to admin when I got the following error(link only) I am not able to paste the picture.

enter image description here This has been coming from terminal(model image)

enter image description here

And I am also not able to open the disk. Please give me an idea of how to solve this problem, which will be very useful for me.

Thanks in advance

0 Answers0