Since this case (installing Fuel master node on vanilla Centos without Fuel ISO) was not originally in the scope of 9.x and does not affect 9.0 -> 9.x update procedure, I am moving bug priority to medium.
Since this case (installing Fuel master node on vanilla Centos without Fuel ISO) was not originally in the scope of 9.x and does not affect 9.0 -> 9.x update procedure, I am moving bug priority to medium.