W:Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/wily/universe/source/Sources  Hash Sum mismatch
, W:Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/wily/main/binary-i386/Packages  Hash Sum mismatch
, W:Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/wily/universe/binary-i386/Packages  Hash Sum mismatch
, W:Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/wily-updates/main/source/Sources  Hash Sum mismatch
, W:Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/wily-updates/main/binary-i386/Packages  Hash Sum mismatch
, W:Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/wily-updates/universe/binary-i386/Packages  Hash Sum mismatch
, E:Some index files failed to download. They have been ignored, or old ones used instead.