Description of problem: When testing boot from ISCSI, we detected that boot from iBFT ISCSI was not properly supported. We needed to include the proper drivers to the ramdisk image to make it work.
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/RHBA-2018:0310