Message "grubby fatal error: unable to find a suitable template" when installing a kernel

Solution Verified - Updated -

Issue

When trying to upgrade or install a kernel, this error message appears:

# yum install kernel
grubby fatal error: unable to find a suitable template
grubby fatal error: unable to find a suitable template
grubby: doing this would leave no kernel entries. Not writing out new config.

Environment

RHEL 7

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