Cara Mengganti Repository di Ubuntu

Kalau mau lebih cepat bisa pakai repo lokal.

1. Download vim dulu

#sudo su
apt install vim

2. Pindahkan souces.list asli

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

3. Buat file sources.list baru

  vim /etc/apt/sources.list

kemudian ketik "i" (tanpa tanda kutip) untuk insert.
lalu masukan repo lokalnya. bisa pilih di bawah ini

# sources.list kambing
deb http://kambing.ui.ac.id/ubuntu/ xenial main restricted universe multiverse
deb http://kambing.ui.ac.id/ubuntu/ xenial-updates main restricted universe multiverse
deb http://kambing.ui.ac.id/ubuntu/ xenial-security main restricted universe multiverse
deb http://kambing.ui.ac.id/ubuntu/ xenial-backports main restricted universe multiverse
deb http://kambing.ui.ac.id/ubuntu/ xenial-proposed main restricted universe multiverse

# sources.list ugm
deb http://repo.ugm.ac.id/ubuntu xenial main restricted universe multiverse
deb http://repo.ugm.ac.id/ubuntu xenial-updates main restricted universe multiverse
deb http://repo.ugm.ac.id/ubuntu xenial-security main restricted universe multiverse
deb http://repo.ugm.ac.id/ubuntu xenial-backports main restricted universe multiverse
deb http://repo.ugm.ac.id/ubuntu xenial-proposed main restricted universe multiverse

# sources.list buaya
deb http://buaya.klas.or.id/ubuntu/ xenial main restricted universe multiverse
deb http://buaya.klas.or.id/ubuntu/ xenial-updates main restricted universe multiverse
deb http://buaya.klas.or.id/ubuntu/ xenial-security main restricted universe multiverse
deb http://buaya.klas.or.id/ubuntu/ xenial-backports main restricted universe multiverse
deb http://buaya.klas.or.id/ubuntu/ xenial-proposed main restricted universe multiverse

4. save dengan cara ketik: "esc" lalu ":wq" dan enter

silahkan update dengan cara "apt-update" saat di root.