Hit http://it.archive.ubuntu.com precise-backports/universe Translation-en
Fetched 2 B in 50s (0 B/s)
W: Failed to fetch bzip2:/var/lib/apt/lists/partial/it.archive.ubuntu.com_ubuntu_dists_precise-updates_main_source_Sources Hash Sum mismatch
W: Failed to fetch bzip2:/var/lib/apt/lists/partial/it.archive.ubuntu.com_ubuntu_dists_precise-backports_universe_source_Sources Hash Sum mismatch
E: Some index files failed to download. They have been ignored, or old ones used instead.