How to re-generate the grubenv file if missing or corrupted ?

Solution Verified - Updated -

Issue

  • The grubenv file is corrupted or missing in BIOS and UEFI systems.

  • Detected a corrupted grubenv file in the /var/log/leapp/leapp-report.txt.

  • Following messages were repeatedly observed in the /var/log/messages:

    grub2-set-bootflag[736726]: Error reading from /boot/grub2/grubenv: Invalid argument
systemd[732552]: grub-boot-success.service: Main process exited, code=exited, status=1/FAILURE
systemd[732552]: grub-boot-success.service: Failed with result 'exit-code'.
systemd[732552]: Failed to start Mark boot as successful.

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

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