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E: Il file cache dei pacchetti è corrotto
E: _cache->open() failed, please report.

deb-src http://archive.ubuntu.com/ubuntu/ intrepid main restricted #Added by software-properties
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

deb http://archive.ubuntu.com/ubuntu/ intrepid main restricted
deb-src http://archive.ubuntu.com/ubuntu/ intrepid multiverse universe #Added by software-properties

## Major bug fix updates produced after the final release of the
## distribution.
deb http://archive.ubuntu.com/ubuntu/ intrepid-updates main restricted
deb-src http://archive.ubuntu.com/ubuntu/ intrepid-updates restricted main multiverse universe #Added by software-properties

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## universe WILL NOT receive any review or updates from the Ubuntu security
## team.
deb http://archive.ubuntu.com/ubuntu/ intrepid universe
deb http://archive.ubuntu.com/ubuntu/ intrepid-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://archive.ubuntu.com/ubuntu/ intrepid multiverse
deb http://archive.ubuntu.com/ubuntu/ intrepid-updates multiverse

## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu/ intrepid-backports main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ intrepid-backports main restricted universe multiverse #Added by software-properties

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository. This software is not part of Ubuntu, but is
## offered by Canonical and the respective vendors as a service to Ubuntu
## users.
deb http://archive.canonical.com/ubuntu intrepid partner
deb-src http://archive.canonical.com/ubuntu intrepid partner

deb http://archive.ubuntu.com/ubuntu/ intrepid-security main restricted
deb-src http://archive.ubuntu.com/ubuntu/ intrepid-security restricted main multiverse universe #Added by software-properties
deb http://archive.ubuntu.com/ubuntu/ intrepid-security universe
deb http://archive.ubuntu.com/ubuntu/ intrepid-security multiverse
deb http://archive.ubuntu.com/ubuntu/ intrepid-proposed restricted main multiverse universe
deb-src http://archive.ubuntu.com/ubuntu/ intrepid-proposed restricted main multiverse universe #Added by software-properties

sudo dpkg --configure -a
e dopo
sudo aptitude update