How to Install Ubuntu on USB Drive

Have you ever wanted to try Ubuntu, but didn’t want to touch Windows or your current system? Or maybe you wanted to have a rescue system with you at all times? Installing Ubuntu on a flash drive is exactly the solution you were looking for. I first tried this method myself to test the hardware of an old laptop. Without installing on the hard drive, just with a simple USB, the system booted up and everything was ready to use. From that moment on, I realized that having an Ubuntu flash drive is like having a digital toolbox that you always have in your pocket. Let’s go step by step.

Why is running Ubuntu from a USB a good idea?

Before we get started, let’s have an overview. Running Ubuntu from a flash drive allows you to:

• Test Linux without changing your current system
• Troubleshoot system software issues
• Rescue important files from a crashed system
• Have a safe and portable environment with you at all times

And most importantly, there is no risk to your current system data.

Installing Ubuntu on a USB Drive

Step 1: Download the Ubuntu ISO file

1- First, you need to get the Ubuntu installation file (ISO).

2- Go to the official Canonical website at Ubuntu and select the Ubuntu Desktop version from the download section.

3- Click Download. If the support page opens, you can scroll down and click the “Not now, take me to the download” option to start the download directly.

Expert tip: Always download the latest stable (LTS) version. It is more stable to use on a USB.

Step 2: Prepare the flash drive and create a bootable USB

1- Now you need a flash drive of at least 8 GB. Connect the flash drive to the system.

2- To create a bootable flash drive, we use Rufus. Of course, there are other tools, but Rufus works simply and quickly.

Steps in Rufus:

• Open Rufus
• Select the USB flash drive
• Select the downloaded Ubuntu ISO file
• Click Start

Important note: This process will erase all data on the flash drive. Be sure to back it up before doing so.

Wait a few minutes for the process to complete. When you see the completion message, your flash drive is ready.

Step 3: Booting the system from USB

1- Now the interesting part begins, connect the flash drive to the system you want to run Ubuntu on and restart the system.

2- When the system starts (for example, on Dell laptops), press the F12 key several times to enter the Boot Menu.

3- In the list displayed, select the USB flash drive.

4- If everything went well, the Linux boot menu will be displayed.

Step 4: Choose Test Mode (No Installation)

When you see the Linux boot screen, you have two main options:

• Install Ubuntu
• Try Ubuntu

Here if you plan to just run and not install anything, select the Try Ubuntu option and wait a few moments…

And that’s it! You are now inside a full Ubuntu system running directly from the flash drive.

When Ubuntu runs from the flash drive, what exactly do we have?

This part is very important. Many people think that the USB version is limited or incomplete. While:

• You have a full graphical environment
• Browser, file manager and tools are enabled
• You can connect to the Internet
• You can even see the files on the main hard drive

In fact, you have a full operating system, just running on the flash drive, Of course, the speed depends on the quality of the flash drive. A USB 3.0 flash drive will provide a much smoother experience.

What if I want to install it later?

There is an installation file on the Ubuntu desktop. Whenever you decide to install the system on the hard drive, just click on that icon and continue the installation process This means you test first, then decide. Risk-free.

A few practical tips to know before you start

• If the system does not boot, enter the BIOS and temporarily disable Secure Boot.
• If the flash drive is not recognized, recreate it with Rufus and check the GPT/MBR mode.
• Do not use very old flash drives; low speed will ruin the experience.
• If you want your changes to be saved, you need to create Persistent Storage (this is a separate step).
• I always have an Ubuntu flash drive ready. Believe me, how many times my friends’ systems have been saved with this flash drive!

When does this method really come in handy?

• When you want to test the environment before migrating to Linux completely
• When Windows won’t boot and you need to rescue files
• When the system is suspected of having a virus and you want to check outside of Windows
• When you need a secure and portable system

This method is simple, but its applications are professional, many more helpful articals are available at our website.

Conclusion

Installing and running Ubuntu on a USB Drive is one of the easiest and most practical ways to experience Linux without risk, even without changing your main hard drive, you have a complete operating system that you can take with you anywhere. Experience has shown that having a bootable Ubuntu flash drive can be a real lifesaver in emergency situations. If you haven’t tried it yet, prepare a flash drive today; it will probably come in handy sooner than you think.