INFO: Run Level: This is a prerequisite condition to test whether the system is running with proper run level.
The system was at Run level 3, as required, but the unprivileged user couldn't see it:
$ who -r
who: Cannot open /etc/inittab: Permission denied
Strange: initab's permission was "rw-r----"
I fixed the problem with:
# chmod 644 /etc/inittab
... and then the verification succeeded.