thank you very much , this was make me confused ,but what you mean with unattended installation , and is there is any way for installing esx by auto deploy on local disk rather than directly load it into memory
... but what you mean with unattended installation ...
You can automate the installation by using kickstart scripts. I'd recommend you search the web for esxi kickstart install. This will give you a lot of examples and hints on how this can be done.