Misal ppa:glennric/dolphin-emu, lalu googling
Hasilnya https://launchpad.net/~glennric/+archive/dolphin-emu
Klik pada Technical details about this PPA
Masukan 2 baris tersebut ke sources.list di /etc/apt/sources.list, caranya:
sudo gedit /etc/apt/sources.list
deb http://ppa.launchpad.net/glennric/dolphin-emu/ubuntu natty main deb-src http://ppa.launchpad.net/glennric/dolphin-emu/ubuntu natty main
simpan
sudo apt-get update
