package:shim-signed:1.28+0.9+1474479173.6c180c6-1ubuntu1
Setting up shim-signed (1.28+0.9+1474479173.6c180c6-1ubuntu1) ...
Instalando para plataforma x86_64-efi.
grub-install: error: no se puede encontrar el directorio EFI.
dpkg: error processing package shim-signed (--configure):
 subprocess installed post-installation script returned error exit status 1