Ciao a tutti,
ho installato da poco Debian 4.0r0 da DVD ed al termine in Preferenze software - Supporto di installazione era presente solo il primo DVD: ho aggiunto i rimanenti due più l'update 4.0r1.
Leggendo altri post ho modificato il file sources.list aggiungendo i repository consigliati ed il risultato è il seguente: quando provo ad eseguire l'aggiornamento del software ho i seguenti errori

Impossibile scaricare gli indici di tutti gli archivi
L'archivio potrebbe non essere più disponibile o non contattabile per problemi alla rete. Se disponibile, verrà utilizzata una vecchia versione dell'indice, altrimenti l'archivio verrà ignorato. Controllare la connessione di rete e la scrittura corretta dell'indirizzo dell'archivio nelle preferenze.
http://mi.mirror.garr.it/mirrors/debian/dists/etch/main/binary-i386/Packages.gz: 404 Not Found
http://www.debian-multimedia.org/dists/etch/main/binary-i386/Packages.gz: 404 Not Found
http://security.debian.org/dists/etch/updates/main/binary-i386/Packages.gz: 404 Not Found
http://debian.fastweb.it/debian/dists/etch/main/binary-i386/Packages.gz: 404 Not Found
http://ftp.it.debian.org/debian/dists/etch/main/binary-i386/Packages.gz: 404 Not Found
http://www.debian-multimedia.org/dists/etch/main/source/Sources.gz: 404 Not Found
http://mi.mirror.garr.it/mirrors/debian/dists/etch/contrib/binary-i386/Packages.gz: 404 Not Found
http://mi.mirror.garr.it/mirrors/debian/dists/etch/non-free/binary-i386/Packages.gz: 404 Not Found
http://mi.mirror.garr.it/mirrors/debian/dists/etch/main/source/Sources.gz: 404 Not Found
http://mi.mirror.garr.it/mirrors/debian/dists/etch/contrib/source/Sources.gz: 404 Not Found
http://mi.mirror.garr.it/mirrors/debian/dists/etch/non-free/source/Sources.gz: 404 Not Found
http://security.debian.org/dists/etch/updates/contrib/binary-i386/Packages.gz: 404 Not Found
http://security.debian.org/dists/etch/updates/main/source/Sources.gz: 404 Not Found
http://security.debian.org/dists/etch/updates/contrib/source/Sources.gz: 404 Not Found
http://debian.fastweb.it/debian/dists/etch/non-free/binary-i386/Packages.gz: 404 Not Found
http://debian.fastweb.it/debian/dists/etch/contrib/binary-i386/Packages.gz: 404 Not Found
http://debian.fastweb.it/debian/dists/etch/main/source/Sources.gz: 404 Not Found
http://debian.fastweb.it/debian/dists/etch/non-free/source/Sources.gz: 404 Not Found
http://debian.fastweb.it/debian/dists/etch/contrib/source/Sources.gz: 404 Not Found
http://ftp.it.debian.org/debian/dists/etch/contrib/binary-i386/Packages.gz: 404 Not Found
http://ftp.it.debian.org/debian/dists/etch/non-free/binary-i386/Packages.gz: 404 Not Found
http://ftp.it.debian.org/debian/dists/etch/main/source/Sources.gz: 404 Not Found
http://ftp.it.debian.org/debian/dists/etch/contrib/source/Sources.gz: 404 Not Found
http://ftp.it.debian.org/debian/dists/etch/non-free/source/Sources.gz: 404 Not Found
An error occured
The following details are provided:
W: Impossibile controllare la lista dei pacchetti sorgente http://ftp.it.debian.org etch/main Packages (/var/lib/apt/lists/ftp.it.debian.org_debian_dists_etch_main_binary-i386_Packages) - stat (2 No such file or directory)
W: Impossibile controllare la lista dei pacchetti sorgente http://ftp.it.debian.org etch/contrib Packages (/var/lib/apt/lists/ftp.it.debian.org_debian_dists_etch_contrib_binary-i386_Packages) - stat (2 No such file or directory)
W: Impossibile controllare la lista dei pacchetti sorgente http://ftp.it.debian.org etch/non-free Packages (/var/lib/apt/lists/ftp.it.debian.org_debian_dists_etch_non-free_binary-i386_Packages) - stat (2 No such file or directory)
W: Impossibile controllare la lista dei pacchetti sorgente http://security.debian.org etch/updates/main Packages (/var/lib/apt/lists/security.debian.org_dists_etch_updates_main_binary-i386_Packages) - stat (2 No such file or directory)
W: Impossibile controllare la lista dei pacchetti sorgente http://security.debian.org etch/updates/contrib Packages (/var/lib/apt/lists/security.debian.org_dists_etch_updates_contrib_binary-i386_Packages) - stat (2 No such file or directory)
W: Impossibile controllare la lista dei pacchetti sorgente http://debian.fastweb.it etch/main Packages (/var/lib/apt/lists/debian.fastweb.it_debian_dists_etch_main_binary-i386_Packages) - stat (2 No such file or directory)
W: Impossibile controllare la lista dei pacchetti sorgente http://debian.fastweb.it etch/non-free Packages (/var/lib/apt/lists/debian.fastweb.it_debian_dists_etch_non-free_binary-i386_Packages) - stat (2 No such file or directory)
W: Impossibile controllare la lista dei pacchetti sorgente http://debian.fastweb.it etch/contrib Packages (/var/lib/apt/lists/debian.fastweb.it_debian_dists_etch_contrib_binary-i386_Packages) - stat (2 No such file or directory)
W: Impossibile controllare la lista dei pacchetti sorgente http://mi.mirror.garr.it etch/main Packages (/var/lib/apt/lists/mi.mirror.garr.it_mirrors_debian_dists_etch_main_binary-i386_Packages) - stat (2 No such file or directory)
W: Impossibile controllare la lista dei pacchetti sorgente http://mi.mirror.garr.it etch/contrib Packages (/var/lib/apt/lists/mi.mirror.garr.it_mirrors_debian_dists_etch_contrib_binary-i386_Packages) - stat (2 No such file or directory)
W: Impossibile controllare la lista dei pacchetti sorgente http://mi.mirror.garr.it etch/non-free Packages (/var/lib/apt/lists/mi.mirror.garr.it_mirrors_debian_dists_etch_non-free_binary-i386_Packages) - stat (2 No such file or directory)
W: Impossibile controllare la lista dei pacchetti sorgente http://www.debian-multimedia.org etch/main Packages (/var/lib/apt/lists/www.debian-multimedia.org_dists_etch_main_binary-i386_Packages) - stat (2 No such file or directory)
faccio presente che sono all'interno di una lan con proxy (che ho settato correttamente l'accesso ad internet)
Dipende dal proxy, devo settare altrove la sua configurazione, o il problema è un altro?
Vi ringrazio per l'aiuto che vorrete fornirmi
Gianni