[CentOS] headless VirtualBox on Centos

> I was looking more or less at the same options. Just was wondering if
> there was a ready-made set of scripts somewhere to set all of this in
> motion to save me a little time - but if not, I will just make one.

You can use vboxmanage modifyvm <VM name> --autostart-enabled on and 
enable vboxautostart-service. However I had to tweak the script to 
suspend VMs on system reboot/shutdown. Don't know if this works out of 
the box with newer VBox versions.