Hello Craig,
1. Check the host to see if the drivers listed in the errors are being used by the host.
2. If you are using the drivers that are causing the conflict, then you would have to download the latest version and install the required drivers prior to upgrading the host.
3. If they are not being used, uninstalling the driers which would not effect the system.
How to fix Conflict vibs error ESXi host upgrade from 5.5 to 6.5?
How to fix Conflict vibs error ESXi host upgrade from 5.5 to 6.5? | Linux/Unix Support
