How To Install libpam-systemd on Ubuntu 20.04
Introduction
In this tutorial we learn how to install libpam-systemd on Ubuntu 20.04.
What is libpam-systemd
libpam-systemd is:
This package contains the PAM module which registers user sessions in the systemd control group hierarchy for logind.
If in doubt, do install this package.
Packages that depend on logind functionality need to depend on libpam-systemd. Task: minimal, ubuntu-core
Package: libpam-systemd Architecture: amd64 Version: 245.4-4ubuntu3 Multi-Arch: same Priority: important Section: admin Source: systemd Origin: Ubuntu Maintainer: Ubuntu Developers [email protected] Original-Maintainer: Debian systemd Maintainers [email protected] Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 615 Provides: default-logind (= 245.4-4ubuntu3), logind (= 245.4-4ubuntu3) Depends: libc6 (>= 2.30), libpam0g (>= 0.99.7.1), systemd (= 245.4-4ubuntu3), libpam-runtime (>= 1.0.1-6), dbus, systemd-sysv Filename: pool/main/s/systemd/libpam-systemd_245.4-4ubuntu3_amd64.deb Size: 185500 MD5sum: 9b82c78a44d548ab93217714e851ac82 SHA1: 934d6e93894699ce45886ee707121b82d0f13ff8 SHA256: bbe99f996749ad1a2be78945a4859b17e8afef76fb31c92935f13291a3be2d2c Homepage: https://www.freedesktop.org/wiki/Software/systemd Description-en: system and service manager - PAM module This package contains the PAM module which registers user sessions in the systemd control group hierarchy for logind.
If in doubt, do install this package.
Packages that depend on logind functionality need to depend on libpam-systemd. Task: minimal, ubuntu-core
There are three methods to install libpam-systemd on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install libpam-systemd Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libpam-systemd using apt-get by running the following command:
sudo apt-get -y install libpam-systemd
Install libpam-systemd Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libpam-systemd using apt by running the following command:
sudo apt -y install libpam-systemd
Install libpam-systemd 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 Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install libpam-systemd using aptitude by running the following command:
sudo aptitude -y install libpam-systemd
How To Uninstall libpam-systemd on Ubuntu 20.04
To uninstall only the libpam-systemd package we can use the following command:
sudo apt-get remove libpam-systemd
Uninstall libpam-systemd And Its Dependencies
To uninstall libpam-systemd and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove libpam-systemd
Remove libpam-systemd Configurations and Data
To remove libpam-systemd configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge libpam-systemd
Remove libpam-systemd configuration, data, and all of its dependencies
We can use the following command to remove libpam-systemd configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libpam-systemd
References
Summary
In this tutorial we learn how to install libpam-systemd package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.