One of my hosts would not upgrade to 6.5. When I looked at the host, and on the Update manager tab, I saw the following.
There is a little more info that is not seen on this screenshot. But we see the issue – Tehuti-Networks has a conflict. So we are going to remove it so we can do the upgrade.
Put your host into Maintenance Mode as we will need to do a power cycle.
So first we confirm the name of the offending VIB.
esxcli software vib list | grep teh*
Here is a screenshot of it
Now we see the actual name we can remove it.
esxcli software vib remove -n=net-tn40x
You can see below what it looks like.
Now we restart the host and we are done. You should be able to update your host now. I was.
=== DND ===