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Liberate Red Hat Enterprise Linux 8.10 with secureboot

To successfully liberate Red Hat Enterprise Linux 8.10 server with secure boot enabled, ensure that the installed kernel, grub2, and shim-x64 packages meet minimum version requirements to prevent boot failures after the migration.

For a fresh server with secure boot, shim-x64-15.8-2.el8_10.x86_64 package is installed during liberation. The other components must be updated manually to specific versions.

Procedure: Preparing a Red Hat Enterprise Linux 8.10 server for liberation with secure boot

  1. Ensure that the following versions or higher are installed:

    • shim-x64-15.8-2.el8_10.x86_64

    • grub2-*-2.02-156.el8.1

    • kernel-4.18.0-553.16.1.el8_10.1

  2. If the current versions are lower then run the following:

    dnf install grub2-*-2.02-156.el8.1
dnf upgrade kernel-4.18.0-553.16.1.el8_10.1

  3. Reboot the system.

    These specific version numbers are for a fresh Red Hat Enterprise Linux 8.10 installation. If your server has been updated, the required versions may be different.