--------- : Yes, you are right. The reason I added it is that on my centos 5 x86-64 machine I was not able to run vzpkg, it failed because it tried calling a script which is part of vzctl-lib. As you say there should be a dependency in place. My experience is that it is missing. Therefore I recommend to add vzctl-lib to the yum-command. It will not cause any problems if the dependency is in place, right?