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– DavidPostill ♦
Commented Dec 7, 2016 at 17:41
9

Thanks, David, for your thoughts. Could you please tell me how my post does not answer the OP's question? Sergey wants to start his guest headless so as to disable the guest's GUI and improve guest performance. Virtualbox can start a guest without a visible window but will still calculate the guest OS's GUI if the guest OS has one. It is not possible to 'disable the guest's GUI' just with Virtualbox commands. If the guest OS launches a GUI, Virtualbox will calculate it even in headless.
– Triple_Fault
Commented Dec 7, 2016 at 20:11
It's more a comment on the other answers. The only bit that attempts to be an answer is the last paragraph, which could do with expanding to explain what you mean by an SSH-only OS (something I've never heard of).
– DavidPostill ♦
Commented Dec 7, 2016 at 20:33
OK, that makes sense. I'm more used to Virtualbox forum, where previous answers may be referred to, but not necessarily repeated. It occurs to me the order of SE answers change sometimes so they should be self-contained. Thanks!
– Triple_Fault
Commented Dec 8, 2016 at 12:02

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