Did you install `sysvinit-core`?   After reboot the inittab file should be there, I forgot `systemd` init does not use the inittab (i should recommend to edit the inittab *after* reboot).

After installing `sysvinit-core` and rebooting, you should be able to edit the `/etc/inittab` file.  Then you can invoke:

`# telinit q`

This will command sysvinit to reread the inittab and it should terminate the useless gettys.

I have edited the main guide to address this issue -- please let me know if it works!