Note: The preceding log excerpts are only examples. Date, time, and environmental variables may vary depending on your environment.
This issue occurs because the i40en VIB does not factor the signature correctly into the ISO.
To resolve this issue:
Use the Image builder GUI in the vSphere 6.5 and remove the i40en driver from the custom image.
Note: You can use the powercli to build a custom image.
For more information, see Getting Started with the New Image Builder GUI in vSphere 6.5.