How to ensure NetworkManager is not auto-enabled after the leapp upgrade from RHEL 7 to RHEL 8 ?

Solution Verified - Updated -

Issue

  • Is there a way to ensure NetworkManager is not auto-enabled after the leapp upgrade from RHEL 7 to RHEL 8?
  • How to disable the NetworkManager & continue with legacy network.service after upgrade from RHEL 7 to RHEL 8?
  • Why the after upgrade from RHEL-7 To RHEL-8 NetworkManager is auto-enabled & running?

Environment

  • Red Hat Enterprise Linux (RHEL) 7
  • Red Hat Enterprise Linux (RHEL) 8
  • NetworkManager
  • network.service

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