efi-readvar command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

efi-readvar: command not found

or when using sudo you get the following error message

sudo: efi-readvar: command not found

Solutions to efi-readvar: command not found

How To Fix efi-readvar: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu efi-readvar is provided by efitools package.

efitools is:

This package installs a variety of tools for manipulating keys and binary signatures on UEFI secure boot platforms. The tools provide access to the keys and certificates stored in the secure variables of the UEFI firmware, usually in the NVRAM area.

To fix this problem, we can install more using the command below.

sudo apt-get -y install efitools

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install efitools.

sudo apt -y install efitools

Or if you have aptitude installed you can use the following command.

sudo aptitude install efitools

Summary

In this tutorial we learn how to fix efi-readvar command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.