How To Install libnss-systemd on Ubuntu 20.04
Introduction
In this tutorial we learn how to install libnss-systemd on Ubuntu 20.04.
What is libnss-systemd
libnss-systemd is:
nss-systemd is a plug-in module for the GNU Name Service Switch (NSS) functionality of the GNU C Library (glibc), providing UNIX user and group name resolution for dynamic users and groups allocated through the DynamicUser= option in systemd unit files. See systemd.exec(5) for details on this option.
Installing this package automatically adds the module to /etc/nsswitch.conf. Task: minimal
Package: libnss-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: 387 Depends: libc6 (>= 2.30), systemd (= 245.4-4ubuntu3) Filename: pool/main/s/systemd/libnss-systemd_245.4-4ubuntu3_amd64.deb Size: 95632 MD5sum: 6cfc4740e82a3fe647ee812f7c6ac94d SHA1: 85d8537f53246f18a53576d37f631b6440b9aa55 SHA256: c632bfa8cb371bb955de09832be7dd0ead2c395c0c5a41497d43efe62c5f0e28 Homepage: https://www.freedesktop.org/wiki/Software/systemd Description-en: nss module providing dynamic user and group name resolution nss-systemd is a plug-in module for the GNU Name Service Switch (NSS) functionality of the GNU C Library (glibc), providing UNIX user and group name resolution for dynamic users and groups allocated through the DynamicUser= option in systemd unit files. See systemd.exec(5) for details on this option.
Installing this package automatically adds the module to /etc/nsswitch.conf. Task: minimal
There are three methods to install libnss-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 libnss-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 libnss-systemd using apt-get by running the following command:
sudo apt-get -y install libnss-systemd
Install libnss-systemd Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libnss-systemd using apt by running the following command:
sudo apt -y install libnss-systemd
Install libnss-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 libnss-systemd using aptitude by running the following command:
sudo aptitude -y install libnss-systemd
How To Uninstall libnss-systemd on Ubuntu 20.04
To uninstall only the libnss-systemd package we can use the following command:
sudo apt-get remove libnss-systemd
Uninstall libnss-systemd And Its Dependencies
To uninstall libnss-systemd and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove libnss-systemd
Remove libnss-systemd Configurations and Data
To remove libnss-systemd configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge libnss-systemd
Remove libnss-systemd configuration, data, and all of its dependencies
We can use the following command to remove libnss-systemd configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libnss-systemd
References
Summary
In this tutorial we learn how to install libnss-systemd package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
