Comment 2 for bug 68274

This one should be closed as invalid.

The idea behind the single parameter is to prevent just the sort of thing requested here by requiring the machine to run in single-user mode.

Better practice in the situation described would be to set a sufficiently complex root password for the server as part of setup. The use of sudo and nologin is to prevent the casual user from logging in as root inadvertently and improvidently. In the situation described, that's not an issue.