/usr/bin/kubelet: No such file or directory on 1662

[Henri d'Auvigny]

Environment:
coreos iso beta (1662.2.0)

Container Linux by CoreOS beta (1662.2.0)
core@k8s-master ~ $ /usr/bin/kubelet
-bash: /usr/bin/kubelet: No such file or directory
core@k8s-master ~ $ 

I don't know why i don't have access to kubelet.

Is it possible to have some advice or help ?

Thanks