I think it's important to specify that Linux Mint is fully compatible with Ubuntu: the repository of Ubuntu are used (and specific ones). See for instance my /

I think it's important to specify that Linux Mint is fully compatible with Ubuntu: the repository of Ubuntu are used (and specific ones). See for instance my /etc/apt/sources.list: deb http://packages.linuxmint.com/ http://packages.linuxmint.com/ isadora main upstream import deb http://archive.ubuntu.com/ubuntu/ http://archive.ubuntu.com/ubuntu/ lucid main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu/ http://archive.ubuntu.com/ubuntu/ lucid-updates main restricted universe multiverse deb http://security.ubuntu.com/ubuntu/ http://security.ubuntu.com/ubuntu/ lucid-security main restricted universe multiverse deb http://archive.canonical.com/ubuntu/ http://archive.canonical.com/ubuntu/ lucid partner deb http://packages.medibuntu.org/ http://packages.medibuntu.org/ lucid free non-free #deb http://archive.getdeb.net/ubuntu http://archive.getdeb.net/ubuntu lucid-getdeb apps #deb http://archive.getdeb.net/ubuntu http://archive.getdeb.net/ubuntu lucid-getdeb games