First you need to download and install Foresight Linux.

Open the file:

sudo gedit /etc/conary/system-model

you might see something like:

search 'group-world=foresight.rpath.org@fl:2-devel/2.5.2+2012.02.17-0.1-1[is: x86]'
search 'group-world=foresight.rpath.org@fl:2-devel/2.5.2+2012.02.17-0.1-1[is: x86(i486,i586,i686,sse,sse2) x86_64]'
install group-gnome-dist-devel

Make it look something like:

search 'group-world=foresight.rpath.org@fl:2-devel/2.5.2+2012.02.17-0.1-1[is: x86]'
search 'group-world=foresight.rpath.org@fl:2-devel/2.5.2+2012.02.17-0.1-1[is: x86(i486,i586,i686,sse,sse2) x86_64]'
install group-desktop-common
install openbox
install metacity
install group-codecs

That will make your system almost pure openbox. Also the easiest way to get openbox going with minimal packages installed.

It is possible to make it even more minimal, can instead use “group-xorg” and other packages to get rid of group-desktop-common.

But this is the easiest way.

After modified system-model file, don’t forget to run: sudo conary updateall