Verified on on CFME-5.8.0.13 + Fix for Bug 1448137 / RHV-4.0.4.
On the following test cases, the error mentioned in this bug do not appear:
1. VM provision from PXE RHEL-6, without custom template - Installation of selected image had started.
2. VM provision from PXE, with a RHEL-6 custom template, and filling the root password, hostname - Installation from chosen PXE image started, however there was a warning that Hardware is not supported, probably because of the mismatch of running on RHV-4.0, and using a RHEL-6 template.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHSA-2017:1367