Linux Dedicated-Server Setup

We have just taken delivery of an OVH dedicated-server
Based on the guidelines, we need to re-install the OS from an OVH-Template
There is however no default OS loaded yet & the server is in rescue-mode
1. We understand that we need to boot to hard-disk
1.1 **Do we then Restart the server?** or
2. Do we then proceed straight to selecting an OS from an OVH-template?
3. And during the template installation, is the option to "install original kernel" only applicable if you decide to add your own installation script?
4. Will the kernel be configured if we follow this procedure or will it "activate" based on us doing point 1.1? (restart server before adding an OS)
5. Please confirm if there is any other pointers we may need to be aware of