deb http://archive.ubuntu.com/ubuntu/ precise main restricted
deb http://archive.ubuntu.com/ubuntu/ precise-updates main restricted
deb http://archive.ubuntu.com/ubuntu/ precise universe
deb http://archive.ubuntu.com/ubuntu/ precise-updates universe
deb http://archive.ubuntu.com/ubuntu/ precise multiverse
deb http://archive.ubuntu.com/ubuntu/ precise-updates multiverse
deb http://archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu precise-security main restricted
deb http://security.ubuntu.com/ubuntu precise-security universe
deb http://security.ubuntu.com/ubuntu precise-security multiverse
deb http://archive.canonical.com/ubuntu precise partner
deb http://extras.ubuntu.com/ubuntu precise main