Failed to fetch http://debian.intergenia.de/debian/dists/squeeze-proposed-updates/main/source/Sources.bz2  Hash Sum mismatch
Failed to fetch http://debian.intergenia.de/debian/dists/squeeze-proposed-updates/main/binary-i386/Packages.bz2  Hash Sum mismatch
Failed to fetch http://debian.intergenia.de/debian/dists/squeeze/updates/main/source/Sources.gz  404  Not Found
Failed to fetch http://debian.intergenia.de/debian/dists/squeeze/updates/contrib/source/Sources.gz  404  Not Found
Some index files failed to download, they have been ignored, or old ones used instead.