Thank you for your help I have the success installation with ubuntu on another thread
I met a couple of errors during installation on VPS centos 6.7 minnimal from openvz template
I think the error is all from ISO template from openvz
First - multilib error
solve by
yum remove libselinux-2.0.94-5.3.el6_4.1.i686 libcom_err-1.41.12-18.el6.i686 libxml2-2.7.6-14.el6.i686
Second - Port 80 conflict (I dont know why there is apache pre-installed on minimal package)
Solve by
yum remove httpd
Third - nginx error
Not yet know how to resolve but will try a method from @yashodhan
If it fail again I will continue on centos 7
Thanks alot