It looks like grub2-efi-x64-modules needs to be installed on the overcloud-full image, so the expected file is there when IPA chroots into it and calls grub2-install.
*However*, I discovered on Friday that the overcloud-full images don't include the bootloader element at all, which was surprising. I need to do some investigation to see what is the appropriate way forward here.
(I deleted comment #13, it wasn't accurate)
It looks like grub2-efi- x64-modules needs to be installed on the overcloud-full image, so the expected file is there when IPA chroots into it and calls grub2-install.
*However*, I discovered on Friday that the overcloud-full images don't include the bootloader element at all, which was surprising. I need to do some investigation to see what is the appropriate way forward here.