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How To Install libncurses.so.5 on Ubuntu 20.04?

Ubuntu 13

In this article, we will guide you through the process of installing libncurses.so.5 on Ubuntu 20.04, also known as Focal Fossa. This library is a part of the NCurses library, which is a free software emulation of curses in System V Release 4.0 (SVr4) and more. It is often used for creating text-based user interfaces.

Quick Answer

To install libncurses.so.5 on Ubuntu 20.04, you need to enable the universe repository and then install the libncurses5 package using the apt command. Make sure you have sudo privileges and update your package lists before proceeding with the installation.

Prerequisites

Before we start, make sure you have sudo privileges on the Ubuntu 20.04 system where the installation is to be performed.

Step 1: Update Your Package Lists

The first step is to update your package lists for upgrades and new package installations. This can be done by running the following command:

sudo apt update

The sudo command is used to run the following command with root privileges. The apt command (short for Advanced Package Tool) is a package management command-line tool used for handling packages in Ubuntu and other Debian-based systems. The update option is used to resynchronize the package index files from their sources.

Step 2: Enable the Universe Repository

The libncurses5 package is available in the universe repository. To enable this repository, execute the following commands:

sudo add-apt-repository universe
sudo apt update

The add-apt-repository command is used to add a repository to your system. The universe repository contains community-maintained free and open-source software. Running sudo apt update again ensures that your system recognizes the newly added repository.

Step 3: Install the libncurses5 Package

Now, you can install the libncurses5 package for both 32-bit and 64-bit architectures by running the following command:

sudo apt install libncurses5 libncurses5:i386

The install option in the apt command is used to install a package. libncurses5 is the package that contains libncurses.so.5 for 64-bit systems, and libncurses5:i386 is the same package for 32-bit systems.

Troubleshooting

If you encounter any issues during the installation, make sure that the universe repository is enabled. You can check this by going to the “Software & Updates” GUI and ensuring that the checkbox for “Community-maintained free and open-source software (universe)” is checked.

If the universe repository is enabled and you are still facing problems, try restarting your computer. This has resolved the issue for some users.

Setting Up the Correct Foreign Architecture

If you need to set up the correct foreign architecture, follow these steps:

  1. Check your main architecture by running the following command:
sudo dpkg --print-architecture
  1. Check your foreign architecture by executing the following command:
sudo dpkg --print-foreign-architectures
  1. If the foreign architecture is empty, add the i386 architecture by running the following command:
sudo dpkg --add-architecture i386

The dpkg command is a package manager from Debian that can install, remove, and build packages. The --print-architecture option prints the main architecture of the system, and --print-foreign-architectures prints the foreign architectures. The --add-architecture option adds a new foreign architecture.

By following these steps, you should be able to install libncurses.so.5 on Ubuntu 20.04 with both 32-bit and 64-bit support. If you have any questions or run into any problems, don’t hesitate to ask for help in the comments below.

What is `libncurses.so.5` used for?

libncurses.so.5 is a library that is part of the NCurses library, which is used for creating text-based user interfaces. It provides functions for controlling text output, managing windows, and handling keyboard input.

Why do I need to enable the Universe repository?

The libncurses5 package is available in the universe repository, which contains community-maintained free and open-source software. Enabling the Universe repository allows you to access and install the libncurses5 package.

How do I check if the Universe repository is enabled?

You can check if the Universe repository is enabled by going to the "Software & Updates" GUI and ensuring that the checkbox for "Community-maintained free and open-source software (universe)" is checked. Alternatively, you can run the command sudo add-apt-repository --list and check if the Universe repository is listed.

What should I do if I encounter issues during the installation?

If you encounter issues during the installation, first make sure that the Universe repository is enabled. If it is enabled and you are still facing problems, try restarting your computer as this has resolved the issue for some users.

How do I set up the correct foreign architecture?

To set up the correct foreign architecture, you can follow the steps mentioned in the article. First, check your main architecture using the command sudo dpkg --print-architecture. Then, check your foreign architecture using the command sudo dpkg --print-foreign-architectures. If the foreign architecture is empty, add the i386 architecture by running sudo dpkg --add-architecture i386.

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