By installing the shim.x64 package in the image /boot/efi/EFI/BOOT/BOOTX64.EFI, /boot/efi/EFI/centos/shim.efi, and /boot/efi/EFI/centos/shimx64.efi are all created. Curtin only needs to ensure shim.x64 is installed and it configures the nvram with efibootmgr to fall back on /boot/efi/EFI/centos/shimx64.efi
By installing the shim.x64 package in the image /boot/efi/ EFI/BOOT/ BOOTX64. EFI, /boot/efi/ EFI/centos/ shim.efi, and /boot/efi/ EFI/centos/ shimx64. efi are all created. Curtin only needs to ensure shim.x64 is installed and it configures the nvram with efibootmgr to fall back on /boot/efi/ EFI/centos/ shimx64. efi