fwupdate-amd64-signed software package provides Linux Firmware Updater EFI binary (EFI-AMD64 version, signed), you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install fwupdate-amd64-signed
fwupdate-amd64-signed is installed in your system.
Make ensure the fwupdate-amd64-signed package were installed using the commands given below,
$ sudo dpkg-query -l | grep fwupdate-amd64-signed *
You will get with fwupdate-amd64-signed package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Utilities |
| Package | fwupdate-amd64-signed |
| Version | 1.11+0.5-2ubuntu4 |
| Description | Linux Firmware Updater EFI binary (EFI-AMD64 version, signed) |
| Sub Section | Utils |