> could I use stable and unstable sources list at the same time as this in > /etc/apt/sources.list? > > deb ftp://ftp.linuxforum.net/debian/ stable main > deb ftp://ftp.linuxforum.net/debian/ unstable main Yes. I think you should include testing as well. Then you need to put *one* of the following lines in /etc/apt/apt.conf APT::Default-Release "stable"; APT::Default-Release "testing"; APT::Default-Release "unstable";