aggiornamento non riuscito ubuntu 12.04

nuovodilinux

Ciao a tutti, ho installato ubuntu 12.04 e se faccio l'aggiornamento, mi dice: “le informazioni sui pacchetti sono state aggiornate 247 giorni fa” e facendo l'aggiornamento mi dice:
“Scaricamento delle informazioni del repository non riuscito”
e nei dettagli:

Codice: Seleziona tutto

W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring/main/source/Sources  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring/universe/source/Sources  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring/restricted/source/Sources  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring/multiverse/source/Sources  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring/main/binary-i386/Packages  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring/universe/binary-i386/Packages  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring/restricted/binary-i386/Packages  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring/multiverse/binary-i386/Packages  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring-updates/main/source/Sources  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring-updates/universe/source/Sources  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring-updates/restricted/source/Sources  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring-updates/multiverse/source/Sources  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring-updates/main/binary-i386/Packages  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring-updates/universe/binary-i386/Packages  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring-updates/restricted/binary-i386/Packages  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/raring-updates/multiverse/binary-i386/Packages  404  Not Found [IP: 193.206.140.45 80]
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/raring-security/main/source/Sources  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/raring-security/universe/source/Sources  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/raring-security/restricted/source/Sources  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/raring-security/multiverse/source/Sources  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/raring-security/main/binary-i386/Packages  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/raring-security/universe/binary-i386/Packages  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/raring-security/restricted/binary-i386/Packages  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/raring-security/multiverse/binary-i386/Packages  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://ppa.launchpad.net/gwendal-lebihan-dev/cinnamon-stable/ubuntu/dists/precise/main/source/Sources  404  Not Found
, W:Failed to fetch http://ppa.launchpad.net/gwendal-lebihan-dev/cinnamon-stable/ubuntu/dists/precise/main/binary-i386/Packages  404  Not Found
, E:Some index files failed to download. They have been ignored, or old ones used instead.

Qualcuno può darmi qualche consiglio, grazie

Inseriti come hai fatto i listati rendono il post troppo lungo e di difficile lettura.
In futuro incollali tra i tag [ code] e [ /code] che si creano cliccando su Codice in alto, sopra la finestra di scrittura (editor completo) così:

[ code]listato
da postare[ /code]

Correggi il post precedente cliccando su "modifica", poi evidenzia il listato, clicca su Codice e salva

Ciao

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