deb http://us.archive.ubuntu.com/ubuntu/ gutsy main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ gutsy main restricted universe multiverse

deb http://us.archive.ubuntu.com/ubuntu/ gutsy-updates main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ gutsy-updates main restricted

deb http://us.archive.ubuntu.com/ubuntu/ gutsy-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ gutsy-backports main restricted universe multiverse

deb http://security.ubuntu.com/ubuntu gutsy-security main restricted universe multiverse
deb-src http://security.ubuntu.com/ubuntu gutsy-security main restricted universe multiverse

deb http://packages.medibuntu.org/ gutsy free non-free