Trying to migrate from MBR to uefi I prepared an ESP (vfat, "esp" tag
is set, mounted on /boot/efi) and replaced the grub-pc and grub-pc-bin
packages by grub-efi and grub-efi-amd64.

Problem: The postinst script of grub-efi-amd64 seems to update
/boot/grub/grub.cfg, but /boot/efi/EFI is not set up. I had to explicitly
run

	grub-install --target=x86_64-efi /dev/sdf

That should be the job of the postinst script, as it is for grub-pc.


Regards

Harri