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system installation process. This allows users installing via serial console to enable serial console login during the installation process using an un-customized install. The user is not prompted to modify /etc/ttys during a normal install, but is offered the opportunity during post-install configuration. - Introduce configTTYs(), which describes the benefits of editing /etc/ttys, and asks for confirmation before spawning the editor. - add configTTYs to the post-install configuration, as well as to the global configuration index.