Well, I have to correct a mistake. I was saying back in this thread that I got the idea of login.conf being configured for minimal systems from FAQ, the OpenBSD FAQ. I think I put it in the wrong way and I got it actualy from Absolute OpenBSD: Unix for the paranoid (page 126).
So,to Nick Holland, I'm sorry for that, please excuse my intrusion. All being said, I was pointed in the right direction and I got my lesson. Thanks.