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Terminal Craft Journal Author
Published: July 22, 2026
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In: Technology & Development

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Last updated: June 25, 2023

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TL;DR

To find UUID in Linux, you can try these three methods:

  1. blkid Command: Use the blkid command to locate UUIDs in Linux.
  2. Checking /etc/fstab: Find UUIDs by examining the /etc/fstab file.
  3. lsblk Command: List block devices and their UUIDs using the lsblk command.

When working with UUIDs in Linux, following best practices for efficient system administration is essential. These include maintaining consistency in UUID usage, documenting and storing UUIDs, exercising caution when modifying UUIDs, and regularly verifying UUID references. By adhering to these practices, you can ensure system stability and ease of administration. Additionally, be aware of common errors such as UUID not found, UUID conflicts, incorrect UUID references, and UUID changes after disk replacement. Understanding and addressing these errors will help you effectively manage UUIDs in Linux.

Learn more about how to find UUID in Linux Terminal with three proven methods and some common errors and best practices to get the most out of it.

Universally Unique Identifiers (UUIDs) play a crucial role in Linux systems. These unique alphanumeric strings enable precise identification of various elements within the Linux environment, such as filesystems, devices, and software configurations. Locating UUIDs is essential for mounting filesystems, configuring software, and managing devices. In this comprehensive guide, I will explore different methods to find UUID in Linux, equipping you with the knowledge to navigate the intricacies of UUID retrieval. Plus, I will also discuss some common errors and best practices for installing UUID.

How to Find UUID in Linux [3 Methods]

To find UUID in Linux, you can use the blkid command to retrieve UUID information for devices and filesystems, check the /etc/fstab file for UUIDs associated with mounted filesystems, and utilize the lsblk command to list block devices along with their UUIDs. 

1. blkid Command

The blkid command is a powerful utility that allows you to locate UUIDs in Linux. This method lets you quickly retrieve UUID information for your devices and filesystems. Follow these steps to use the blkid command effectively:

  1. Open a terminal on your Linux system.
opening-terminal
  1. Type the following command and press Enter to execute the command: 

<strong>blkid</strong>
  1. The output will display a list of devices and their corresponding UUIDs in Linux. 
command-to-find-UUID-in-Linux
  1. Use the -s option to specify the specific attribute you want to view (e.g., UUID).
displaying-UUID-strings

2. Checking /etc/fstab

The /etc/fstab file contains vital information about the filesystems mounted on your Linux system. This method allows you to find UUIds in Linux by examining the contents of this file. You can find UUID in Linux by following these steps:

  1. Launch the terminal window on your Linux system. Use a text editor to open the /etc/fstab file and run the following command:

<strong>sudo nano /etc/fstab</strong>
  1. This command will show UUID in a nano text editor.
using-nano-editor-to-view-UUID
  1. Look for lines that contain UUID= followed by a UUID string.
displaying-UUID-strings

3. lsblk Command

The lsblk command allows you to list block devices along with their UUIDs. By employing this method, you can obtain a comprehensive view of the devices and their associated UUIDs. To employ this method, follow these steps:

  1. Launch a terminal on your Linux system and execute the command: