I boot with 'boot -c' and then enter 'disable mei' and then 'quit'. Pcidump still shows Intel MEI, just as it does when booting with default config. I don't think anything changed. But UKC doesn't complain when I disable mei, so I know it knows 'mei' and disables it. But how would I know it does disable it?
Also, 'boot -c' accumulates what changes I do. How does one reset changes to go back to vanilla kernel?