Agent-based installation fails in early stage and not able to ssh with error as Permission denied to core@x.x.x.x

Solution Verified - Updated -

Issue

  • Post booting from ISO of agent-based installation and booting the node doesn't progress and ssh fails to the node.
  • Could not ssh to node as Permission denied error.
ssh ssh -i ~/.ssh/id_rsa.pub core@x.x.x.x
core@x.x.x.x: Permission denied (publickey,gssapi-keyex,gssapi-with-mic).

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 4.12 or later
  • Agent Based Installer

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