How To Install uidmap on Ubuntu 20.04
Introduction
In this tutorial we learn how to install uidmap on Ubuntu 20.04.
What is uidmap
uidmap is:
These programs help unprivileged users to create uid and gid mappings in user namespaces.
Package: uidmap Architecture: amd64 Version: 1:4.8.1-1ubuntu5 Multi-Arch: foreign Priority: optional Section: universe/admin Source: shadow Origin: Ubuntu Maintainer: Ubuntu Developers [email protected] Original-Maintainer: Shadow package maintainers [email protected] Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 167 Depends: libaudit1 (>= 1:2.2.1), libc6 (>= 2.8), libselinux1 (>= 2.1.9) Filename: pool/universe/s/shadow/uidmap_4.8.1-1ubuntu5_amd64.deb Size: 26768 MD5sum: 87cef8dd01c990e47ec9a85298aa7b84 SHA1: e1c7b5bfcb00cf88d4e37f3170777bcc20d04c26 SHA256: 1f9de912cef8e838ac4b1b80f1b79fc9f6790bc53e062c13eaf0470149ef9d50 Homepage: https://github.com/shadow-maint/shadow Description-en: programs to help use subuids These programs help unprivileged users to create uid and gid mappings in user namespaces.
There are three methods to install uidmap 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 uidmap Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install uidmap using apt-get by running the following command:
sudo apt-get -y install uidmap
Install uidmap Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install uidmap using apt by running the following command:
sudo apt -y install uidmap
Install uidmap 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 uidmap using aptitude by running the following command:
sudo aptitude -y install uidmap
How To Uninstall uidmap on Ubuntu 20.04
To uninstall only the uidmap package we can use the following command:
sudo apt-get remove uidmap
Uninstall uidmap And Its Dependencies
To uninstall uidmap and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove uidmap
Remove uidmap Configurations and Data
To remove uidmap configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge uidmap
Remove uidmap configuration, data, and all of its dependencies
We can use the following command to remove uidmap configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge uidmap
References
Summary
In this tutorial we learn how to install uidmap package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
