See Ubuntu Version

Managing and maintaining an Ubuntu system involves various tasks, one of which is keeping track of the installed version. Knowing your Ubuntu version is crucial for compatibility checks, updates, and troubleshooting. This guide will walk you through different methods to see Ubuntu version on your system, ensuring you have the information you need at your fingertips.

Why Knowing Your Ubuntu Version Matters

Understanding the version of Ubuntu you are running is essential for several reasons:

Compatibility: Certain software and applications may require specific versions of Ubuntu to function correctly.
Updates: Knowing your version helps in planning and applying updates and upgrades smoothly.
Troubleshooting: When seeking help or reporting issues, providing the Ubuntu version can expedite the resolution process.
Security: Ensuring you are running a supported version helps in maintaining the security of your system.

Methods to See Ubuntu Version

There are several ways to check the Ubuntu version on your system. Below are some of the most common methods:

Using the Command Line

The command line is a powerful tool for system administration tasks, including checking the Ubuntu version. Here are some commands you can use:

lsb_release Command

The lsb_release command provides detailed information about the Linux distribution. To see the Ubuntu version, open a terminal and type:

lsb_release -a

This command will output information similar to the following:

No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.3 LTS
Release:        20.04
Codename:       focal

In this example, the Ubuntu version is 20.04.3 LTS, which is also known as “Focal Fossa.”

hostnamectl Command

The hostnamectl command provides information about the system, including the operating system version. To use this command, open a terminal and type:

hostnamectl

The output will include a line that shows the operating system version, similar to:

   Operating System: Ubuntu 20.04.3 LTS
            Kernel: Linux 5.4.0-81-generic
      Architecture: x86-64

This command is particularly useful for systems that use systemd, which is the default init system for Ubuntu.

cat /etc/os-release

The /etc/os-release file contains operating system identification data. To view this file, open a terminal and type:

cat /etc/os-release

The output will include lines similar to:

NAME=“Ubuntu”
VERSION=“20.04.3 LTS (Focal Fossa)”
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME=“Ubuntu 20.04.3 LTS”
VERSION_ID=“20.04”
HOME_URL=”https://www.ubuntu.com/”
SUPPORT_URL=”https://help.ubuntu.com/”
BUG_REPORT_URL=”https://bugs.launchpad.net/ubuntu/”
PRIVACY_POLICY_URL=”https://www.ubuntu.com/legal/terms-and-policies/privacy-policy”
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal

This file provides a comprehensive overview of the operating system, including the version and codename.

cat /etc/issue

The /etc/issue file contains a system identification message or system information. To view this file, open a terminal and type:

cat /etc/issue

The output will typically show the Ubuntu version, similar to:

Ubuntu 20.04.3 LTS 
 l

This file is often used to display a message before the login prompt.

Using the Graphical User Interface

If you prefer using the graphical user interface (GUI), there are several ways to see Ubuntu version without opening a terminal.

Settings Application

The Settings application provides a user-friendly way to access system information. To check the Ubuntu version using the Settings application:

Open the Settings application from the application menu.
Navigate to the About section.
Look for the OS type and Version fields, which will display the Ubuntu version.

This method is ideal for users who are not comfortable with the command line.

System Information Tool

The System Information tool provides detailed information about your system, including the Ubuntu version. To access this tool:

Open the application menu and search for System Information.
Launch the System Information tool.
Look for the Operating System section, which will display the Ubuntu version.

This tool is part of the GNOME desktop environment and is available by default on most Ubuntu installations.

Software & Updates Application

The Software & Updates application allows you to manage software sources and updates. To check the Ubuntu version using this application:

Open the Software & Updates application from the application menu.
Navigate to the Updates tab.
Look for the Show new distribution releases option, which will indicate the current Ubuntu version.

This method is useful for users who want to ensure their system is up-to-date.

Understanding Ubuntu Versioning

Ubuntu follows a specific versioning scheme that includes both release numbers and codenames. Understanding this scheme can help you better manage your system.

Release Numbers

Ubuntu releases are numbered in a year.month format. For example, Ubuntu 20.04 was released in April 2020. The first number (20) represents the year, and the second number (04) represents the month. This numbering system helps users quickly identify the release date of their Ubuntu version.

Long Term Support (LTS) Versions

Every two years, Ubuntu releases a Long Term Support (LTS) version. These versions are supported for five years, making them ideal for users who prioritize stability and long-term support. LTS versions are denoted by the suffix “LTS” in their release number. For example, Ubuntu 20.04 LTS is an LTS version.

Codenames

Each Ubuntu release is also assigned a codename, which is a two-word name that follows a specific theme. For example, Ubuntu 20.04 LTS is codenamed “Focal Fossa.” Codenames are used internally by developers and are often referenced in documentation and forums. They add a fun and memorable element to the release names.

Upgrading Ubuntu

Once you have determined your Ubuntu version, you may want to upgrade to a newer version. Upgrading can provide access to new features, improved performance, and enhanced security. Here are the steps to upgrade Ubuntu:

Using the Command Line

To upgrade Ubuntu using the command line, follow these steps:

Open a terminal.
Update the package list by running:

sudo apt update

Upgrade the installed packages by running:

sudo apt upgrade

Install the update-manager-core package if it is not already installed:

sudo apt install update-manager-core

Launch the upgrade tool by running:

sudo do-release-upgrade

Follow the on-screen instructions to complete the upgrade process.

Using the Graphical User Interface

To upgrade Ubuntu using the graphical user interface, follow these steps:

Open the Software & Updates application from the application menu.
Navigate to the Updates tab.
Ensure that the Show new distribution releases option is set to Normal releases or For long-term support versions.
Click the Close button and then click Reload when prompted.
Open the Update Manager from the application menu.
If an upgrade is available, click the Upgrade button and follow the on-screen instructions.

📝 Note: Before upgrading, it is recommended to back up your important data to prevent any potential data loss.

Common Issues and Troubleshooting

While checking and upgrading your Ubuntu version is generally straightforward, you may encounter some issues. Here are some common problems and their solutions:

Command Not Found

If you encounter a “command not found” error when trying to use commands like lsb_release or hostnamectl, it may be because the command is not installed on your system. To install these commands, use the following commands:

sudo apt install lsb-release

sudo apt install systemd

Upgrade Stuck

If your upgrade process gets stuck, you can try the following steps:

Open a terminal and run:

sudo apt-get dist-upgrade

If the issue persists, you can try using the do-release-upgrade command with the -d option to upgrade to the development release:

sudo do-release-upgrade -d

Note that this option is only available for users who want to upgrade to the next development release.

Boot Issues

If you encounter boot issues after upgrading, you can try the following steps:

Boot into recovery mode by holding the Shift key during startup.
Select the root option from the recovery menu.
Run the following commands to repair the bootloader:

mount -o remount,rw /
update-grub
grub-install /dev/sdX

Replace /dev/sdX with the appropriate device identifier for your system.

Conclusion

Knowing how to see Ubuntu version is a fundamental skill for any Ubuntu user. Whether you prefer using the command line or the graphical user interface, there are multiple methods to check your Ubuntu version. Understanding your version helps in compatibility checks, updates, troubleshooting, and security. Upgrading to a newer version can provide access to new features and improved performance, but it is essential to back up your data before proceeding. By following the steps outlined in this guide, you can effectively manage your Ubuntu system and ensure it runs smoothly.

Related Terms: