
8 MiB is not enough when using the grub2 element with centos7 images, which installs binaries from the shim-x64 and grub2-efi-x64 packages under /boot/efi. 12 MiB ought to be enough for anybody. Change-Id: I8594d1fe05242f246a5809740a115ab2f84ac5a3
Block Device EFI
This provides a block-device configuration for the vm
element to get a single-partition disk suitable for EFI booting.
Note on x86 this provides the extra BIOS boot partition and a EFI boot partition for maximum compatability.