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I think I installed the ppa with: cd / && sudo add-apt-repository ppa:texlive-backports/ppa

Whenever I try to manually update, I get the following message:

Failed to fetch http://ppa.launchpad.net/texlive-backports/ppa/ubuntu/dists/raring/main/binary-i386/Packages  404  Not Found

Please, how do I remove this texlive ppa from my machine without reformatting?

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marked as duplicate by Mitch, fossfreedom Jul 28 '13 at 20:25

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