How To Install pinentry-qt4 on Debian 9

In this tutorial we learn how to install pinentry-qt4 on Debian 9. pinentry-qt4 is Qt-based PIN or pass-phrase entry dialog for GnuPG (transitional dummy package)

Introduction

In this tutorial we learn how to install pinentry-qt4 on Debian 9.

What is pinentry-qt4

pinentry-qt4 is:

Pinentry is a program for secure entry of PINs and passphrases, from the GnuPG project.

This package installs a symbolic link from pinentry-qt4 to pinentry-qt. You should switch to using pinentry-qt instead.

There are three methods to install pinentry-qt4 on Debian 9. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install pinentry-qt4 Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install pinentry-qt4 using apt-get by running the following command:

sudo apt-get -y install pinentry-qt4

Install pinentry-qt4 Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install pinentry-qt4 using apt by running the following command:

sudo apt -y install pinentry-qt4

Install pinentry-qt4 Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Debian. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install pinentry-qt4 using aptitude by running the following command:

sudo aptitude -y install pinentry-qt4

How To Uninstall pinentry-qt4 on Debian 9

To uninstall only the pinentry-qt4 package we can use the following command:

sudo apt-get remove pinentry-qt4

Uninstall pinentry-qt4 And Its Dependencies

To uninstall pinentry-qt4 and its dependencies that are no longer needed by Debian 9, we can use the command below:

sudo apt-get -y autoremove pinentry-qt4

Remove pinentry-qt4 Configurations and Data

To remove pinentry-qt4 configuration and data from Debian 9 we can use the following command:

sudo apt-get -y purge pinentry-qt4

Remove pinentry-qt4 configuration, data, and all of its dependencies

We can use the following command to remove pinentry-qt4 configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge pinentry-qt4

Dependencies

pinentry-qt4 have the following dependencies:

References

Summary

In this tutorial we learn how to install pinentry-qt4 package on Debian 9 using different package management tools: apt, apt-get and aptitude.