leapp: How to solve Risk Factor HIGH "GRUB core will be updated during upgrade"

Solution Verified - Updated -

Issue

  • When upgrading a system from RHEL7 to RHEL8 or RHEL8 to RHEL9, the following Risk Factor is reported

    Risk Factor: high
Title: GRUB core will be updated during upgrade
Summary: On legacy (BIOS) systems, GRUB core (located in the gap between the MBR and the first partition) does not get automatically updated when GRUB is upgraded.
Key: baa75fad370c42fd037481909201cde9495dacf4

Environment

  • Red Hat Enterprise Linux 7 and later
    • leapp

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