cloned virtual machine unable to boot

[Zaplinski, Olaf]

Hello,

I have a problem with grub2-common-2.02-0.65.el7.centos.2.noarch on a cloned 
virtual machine. The clone fails to boot. When I reinstall grub, I get:

address@hidden ~]# grub2-install
Installing for x86_64-efi platform.
Installation finished. No error reported.

address@hidden ~]# grub2-mkconfig > /boot/efi/EFI/centos/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.0-862.3.3.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-862.3.3.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-e396f87a7b2941c1af2ec1199ab9deb5
Found initrd image: 
/boot/initramfs-0-rescue-e396f87a7b2941c1af2ec1199ab9deb5.img
done

But when I reboot, I end up at the grub prompt.

Cheers
Olaf
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