vmcore-dmesg command not found

Introduction

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

vmcore-dmesg: command not found

or when using sudo you get the following error message

sudo: vmcore-dmesg: command not found

Solutions to vmcore-dmesg: command not found

How To Fix vmcore-dmesg: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu vmcore-dmesg is provided by kexec-tools package.

kexec-tools is:

This package provides tools to load a kernel into memory and then “reboot” directly into that kernel using the kexec system call, bypassing the normal boot process.

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

sudo apt-get -y install kexec-tools

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

You can also use apt command to install kexec-tools.

sudo apt -y install kexec-tools

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

sudo aptitude install kexec-tools

Summary

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