Why is tboot not supported on RHEL installed with UEFI?
In order for tboot to work with RHEL installed with UEFI, the
grub2-efi (RHEL7) and
grub.efi (RHEL6) boot loaders must be able to launch more than one image. In such a scenario, tboot could unknowingly load a blacklisted image whose keys are in the platform vendor's Secure Boot blacklisted keys database...
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