Ok grazie. Editalo, cancella tutto quello che c'è scritto e incolla questo:
Codice:
# International Repository
deb http://archive.ubuntu.com/ubuntu/ edgy main restricted
deb-src http://archive.ubuntu.com/ubuntu/ edgy main restricted
deb http://archive.ubuntu.com/ubuntu/ edgy-updates restricted main multiverse universe
deb-src http://archive.ubuntu.com/ubuntu/ edgy-updates main restricted
deb http://archive.ubuntu.com/ubuntu/ edgy-backports main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ edgy-backports main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ edgy universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ edgy universe multiverse
Poi da synaptic o adept fai un refresh e poi ricerchi i pacchetti che ti servono.