I've followed the instructions up to "Basic SELinux setup:" step 4
Installing selinux-policy-refpolicy-src doesn't appear to create
/etc/selinux/refpolicy/src/policy
I had to:
tar xzf /usr/src/selinux-policy-refpolicy-src.tar.gz
cd selinux-policy-refpolicy-src
make install-src
Thanks for the guide anyhow :)