I have a newer skylake NUC which has two NVM-based SSD. The installation from a hddimg failed on these devices because the new "nvme..." device names is not supported. The installer failed with wrong partition nodes as a result. Talked with Cal, we think one of the several commits of init-install-efi in poky (85c9b9) should be the fix. These commits need to be ported to the installer script in meta-intel as well. I don't think the NUC 6 has nvme block devices, please contact me once BSP team need a target to test.
Merged in meta-intel 3afa94c979c984b978142170b8dbe6533ab8536c