Ubuntu 12.04.5 LTS (GNU/Linux 3.2.13-grsec-xxxx-grs-ipv6-64 x86_64)
https://github.com/oe-alliance/oe-alliance-core
and a lot more...
1 - Install packages on your buildserver
sudo apt-get install -y autoconf automake bison bzip2 chrpath coreutils cvs default-jre default-jre-headless diffstat flex g++ gawk gcc gettext git-core gzip help2man htop info java-common libc6-dev libglib2.0-dev libperl4-corelibs-perl libproc-processtable-perl libtool libxml2-utils make ncdu ncurses-bin ncurses-dev patch perl pkg-config po4a python-setuptools quilt sgmltools-lite sshpass subversion swig tar texi2html texinfo wget xsltproc zip zlib1g-dev
2 - Set your shell to /bin/bash.
sudo dpkg-reconfigure dash
When asked: Install dash as /bin/sh?
select "NO"
3 - Add user openatvbuilder
sudo adduser openatvbuilder
4 - Switch to user openatvbuilder
su openatvbuilder
5 - Switch to home of openatvbuilder
cd ~
6 - Create folder openatv
mkdir -p ~/openatv
7 - Switch to folder openatv
cd openatv
8 - Clone oe-alliance git
git clone git://github.com/oe-alliance/build-enviroment.git
9 - Switch to folder build-enviroment
cd build-enviroment
10 - Update build-enviroment
make update
11 - Finally you can start building a image
make MACHINE=gbquadplus DISTRO=openatv image