Don,

Thanks for the reply. I would not have thought so either.

I rebooted the host and once it came back up, I imported the MEM 1.5 update and applied using VUM. Once the host rebooted a second time, it failed to boot into esx. It doesn't even attempt to load (never gets out of the BIOS) so I am not sure what happened.

Thanks again.

I just figured out the issue. When the patch baseline was created (sometime ago) it was created as a host PATCH and not EXTENSION. I had not used that baseline before.

So its off to rebuild this host...