Documentation issue under Deploy OpenShift

[dpearceMN]

Step 1 - I can not get either option to work.

Q1: Is rhcos equal to the rhcos*.iso file?
Q2: For the bootstrap method, do you replace the entire line after pressing the TAB?
Q3: For the other method I get the following error:

# Bootstrap Node - ocp-bootstrap
coreos.inst.install_dev=sda coreos.inst.image_url=http://192.168.22.1:8080/ocp4/rhcos coreos.inst.insecure=yes coreos.inst.ignition_url=http://192.168.22.1:8080/ocp4/bootstrap.ign

# Or if you waited for it boot, use the following command then just reboot after it finishes and make sure you remove the attached .iso
sudo coreos-installer install /dev/sda -u http://192.168.22.1:8080/ocp4/rhcos -I http://192.168.22.1:8080/ocp4/bootstrap.ign --insecure --insecure-ignition

[dpearceMN]

Using RHCOS 4.14 - There is no *.sig file. Can not find one the RedHat OpenShift Cluster Manager site.
The --insecure flag does not seem to work on coreos-installer version 0.17.0 as it still tries to download the signature file.