deb http://archive.ubuntu.com/ubuntu lunar main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu lunar main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu lunar-security main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu lunar-security main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu lunar-updates main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu lunar-updates main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu lunar-proposed main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu lunar-proposed main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu lunar-backports main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu lunar-backports main restricted universe multiverse