How to upgrade Hosted Engine environment with RHEL 6 hosts to RHEL7?

Solution Verified - Updated -

Issue

  • How to upgrade Hosted Engine environment with RHEL 6 hosts to RHEL7 based hosts?
  • Tried adding a RHEL7 host to a 3.5 Hosted Engine setup and hosted-engine --deploy failed with the following error:
[ ERROR ] Failed to execute stage 'Setup validation': Answer file lacks lockspace UUIDs, please use an answer file generated from the same version you are using on this additional host

Environment

  • Red Hat Enterprise Virtualization (RHEV) 3.x
  • Self-Hosted-Engine (SHE, HE) 3.5 and 3.6 with cluster compat mode 3.5
  • RHEL 6 based hosts

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