umount.nfs4 command not found

Introduction

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

umount.nfs4: command not found

or when using sudo you get the following error message

sudo: umount.nfs4: command not found

Solutions to umount.nfs4: command not found

How To Fix umount.nfs4: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu umount.nfs4 is provided by nfs-common package.

nfs-common is:

Use this package on any machine that uses NFS, either as client or server. Programs included: lockd, statd, showmount, nfsstat, gssd, idmapd and mount.nfs.

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

sudo apt-get -y install nfs-common

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

You can also use apt command to install nfs-common.

sudo apt -y install nfs-common

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

sudo aptitude install nfs-common

Summary

In this tutorial we learn how to fix umount.nfs4 command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.