Sugestão de sources.list para o Debian 8 (Jessie)

Após entrar no terminal como root

#mousepad /etc/apt/sources.list

Copiar o conteúdo entre as linhas
___________________________________________________________
###### Debian Main Repos
deb http://ftp.br.debian.org/debian/ jessie main contrib non-free
#deb-src http://ftp.br.debian.org/debian/ jessie main contrib non-free

###### Debian Update Repos
deb http://security.debian.org/ jessie/updates main contrib non-free
#deb-src http://security.debian.org/ jessie/updates main contrib non-free ___________________________________________________________