Essentials: Packages needed to build an image for a headless system:

     $ sudo yum -y install gawk make wget tar bzip2 gzip python unzip perl patch \
     diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath
                        

Graphical Extras: Packages recommended if the host system has graphics support:

     $ sudo yum -y install SDL-devel xterm
                        

Documentation: Packages needed if you are going to build out the Yocto Project documentation manuals:

     $ sudo yum -y install make docbook-style-dsssl docbook-style-xsl \
     docbook-dtds docbook-utils fop libxslt
                        

ADT Installer Extras: Packages needed if you are going to be using the Application Development Toolkit (ADT) Installer:

     $ sudo yum -y install autoconf automake libtool glib2-devel