Install fwts-efi-runtime-dkms by entering the following commands in the terminal:
sudo apt update sudo apt install fwts-efi-runtime-dkms
Description:
Firmware Test Suite UEFI Runtime Service kernel driver
This package provides the efi_runtime kernel driver in DKMS format, which is required for accessing UEFI Runtime Services.
Version: 18.03.00-0ubuntu1
Section: universe/devel