opensift installer on baremetal can fail with this message:

Cluster status: insufficient

this message is not useful and can me misleading.

Baremetal installations are very hard to troubleshoot and when an installation error can be bubbled up it should be informative.

The causes of failure related to that message can be many, see the following KBs 

https://access.redhat.com/solutions/7003393

https://access.redhat.com/solutions/7055832

btw there are more cause of failure, for example in out case it failed because ntp was unreachable.