Leapp upgrade of UEFI system from RHEL8 to RHEL9 enters "grub>" prompt after upgrade phase

Solution Verified - Updated -

Issue

  • Upgrading systems booting in UEFI mode from RHEL8 to RHEL9 ends up getting the following prompt after upgrade occurred:

    grub>
    

Environment

  • Red Hat Enterprise Linux 8
    • leapp
    • UEFI

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