Sources list untuk Ubuntu

Langkah-langkahnya:
1. perintahnya sudo nano /etc/apt/sources.lis
2. Hapus semua isi file lalu masukan data dibawah ini

Repo Sekolah

deb http://200.200.200.202/repo-12.04/ precise main restricted universe multiverse
deb http://200.200.200.202/repo-12.04/ precise-updates main restricted universe multiverse
deb http://200.200.200.202/repo-12.04/ precise-security main restricted universe multiverse
deb http://200.200.200.202/repo-12.04/ precise-backports main restricted universe multiverse
deb http://200.200.200.202/repo-12.04/ precise-proposed main restricted universe multiverse

online

deb http://kambing.ui.ac.id/ubuntu/ precise-proposed main restricted universe multiverse
deb http://kambing.ui.ac.id/ubuntu/ precise-security main restricted universe multiverse
deb http://kambing.ui.ac.id/ubuntu/ precise-updates main restricted universe multiverse
deb http://kambing.ui.ac.id/ubuntu/ precise main restricted universe multiverse

3. lalu jalankan perintah sudo apt-get update
4. lalu jalankan perintah sudo apt-get upgrade

deb http://200.200.200.202/repo-12.04/ precise main restricted universe multiverse
deb http://200.200.200.202/repo-12.04/ precise-updates main restricted universe multiverse
deb http://200.200.200.202/repo-12.04/ precise-security main restricted universe multiverse
deb http://200.200.200.202/repo-12.04/ precise-backports main restricted universe multiverse
deb http://200.200.200.202/repo-12.04/ precise-proposed main restricted universe multiverse

untuk ubuntu 14.04 i386 dan amd64
deb http://200.200.200.202/repo-14.04/ trusty main restricted universe multiverse
deb http://200.200.200.202/repo-14.04/ trusty-updates main restricted universe multiverse
deb http://200.200.200.202/repo-14.04/ trusty-security main restricted universe multiverse
deb http://200.200.200.202/repo-14.04/ trusty-backports main restricted universe multiverse
deb http://200.200.200.202/repo-14.04/ trusty-proposed main restricted universe multiverse