Just FYI, you can modify/replace the /etc/centos-release file (i.e. CentOS release 6.6) so that it reads with RHEL details (i.e. Red Hat Enterprise Linux Server release 7.3)? I’ve done this before on a CentOS root BES server and it worked fine. Obviously this isn’t technically supported, but it’s definitely a cheaper alternative for a POC, temporary or non-production BES environment.
I know you’ve already re-installed on RHEL, but perhaps this will help you in the future.
Best,
@cmcannady