Nodes are unable to boot failing with error "kernel DOS magic is invalid" in Assisted Installer OpenShift installation.

Solution Verified - Updated -

Issue

  • RHEL kernel error when deploying OpenShift with assisted installer.
error: ../../grub-core/loader/efi/linux.c:52:kernel DOS magic is invalid.
error: ../../grub-core/loader/i386/efi/linux.c:258:you need to load the kernel
  • Unable to boot nodes with assisted installer generated iso.

Environment

  • Red Hat OpenShift Container Platform (RHOCP) 4
  • Installation Method - Assisted Installer

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