mv /etc/apt/sources.list /etc/apt/sources.list.bak
nano /etc/apt/sources.list

Aşağıdakileri yapıştırın;

Alıntı
deb http://archive.debian.org/debian oldstable main
deb-src http://archive.debian.org/debian oldstable main

deb http://ftp.debian.org/debian/ squeeze-updates main
deb-src http://ftp.debian.org/debian/ squeeze-updates main

deb http://security.debian.org/ squeeze/updates main
deb-src http://security.debian.org/ squeeze/updates main
Kaydedip çıkın.

İşleminizi tekrarlayın.