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Troubleshooting: Ubuntu Bootable USB Not Detected in UEFI System

Ubuntu 19

In this article, we will discuss a common issue that users often face – Ubuntu bootable USB not being detected in a UEFI system. We’ll cover a range of potential solutions, from checking USB compatibility to updating BIOS/UEFI firmware. Let’s dive in.

Quick Answer

If your Ubuntu bootable USB is not being detected in a UEFI system, there are several potential solutions you can try. These include checking USB compatibility, changing the boot order in the BIOS/UEFI settings, disabling Secure Boot, updating or resetting the BIOS/UEFI firmware, and as a last resort, flashing the firmware. However, it’s important to note that these solutions may not always work, and if they don’t, it’s recommended to seek further assistance or consult with a professional.

Check USB Compatibility

The first step in troubleshooting this issue is to ensure that your USB drive is compatible with the UEFI system. Some older USB drives may not be recognized by UEFI. If you’re unsure about the compatibility of your USB drive, try using a different one. Also, consider updating the firmware of your existing USB drive. You can usually find firmware updates on the manufacturer’s website.

Change Boot Order

Next, you need to confirm that the USB drive is set as the first boot device in the BIOS/UEFI settings. Here’s how you can do that:

  1. Restart your computer and press the key to enter BIOS/UEFI setup. This key varies depending on your system’s manufacturer, but it’s commonly F2, F10, or the Delete key.
  2. Once in the BIOS/UEFI setup, navigate to the boot order settings. This is typically under a tab labeled ‘Boot’.
  3. Set the USB drive as the first boot device.
  4. Save the changes and exit the BIOS/UEFI setup.

Remember to save the changes before exiting the BIOS/UEFI setup, or your changes won’t take effect.

Disable Secure Boot

Secure Boot is a feature in UEFI that prevents booting from unauthorized devices. If Secure Boot is enabled, it might be preventing your system from booting from the USB drive. Here’s how to disable Secure Boot:

  1. Enter the BIOS/UEFI setup.
  2. Navigate to the Secure Boot option. This is usually under a tab labeled ‘Security’ or ‘Boot’.
  3. Set Secure Boot to ‘Disabled’.
  4. Save the changes and exit the BIOS/UEFI setup.

Update BIOS/UEFI Firmware

If none of the above solutions work, consider updating your system’s BIOS/UEFI firmware. Firmware updates can resolve compatibility issues and improve USB detection. You can usually find firmware updates on the manufacturer’s website. Be sure to follow the manufacturer’s instructions when updating firmware.

Reset BIOS/UEFI Settings

Another solution you can try is resetting the BIOS/UEFI settings to their default values. This can help eliminate any misconfigured settings that might be causing the issue. Remember to save your changes before exiting the BIOS/UEFI setup.

Flash BIOS/UEFI Firmware

As a last resort, you can consider flashing the BIOS/UEFI firmware with the latest version provided by the manufacturer. However, flashing firmware should only be done if there is a specific reason to do so and following the manufacturer’s instructions.

Note: Making changes to the BIOS/UEFI settings or flashing firmware can be risky. Proceed with caution and ensure that you have a backup of important data before making any changes.

In conclusion, if your Ubuntu bootable USB is not detected in a UEFI system, there are several troubleshooting steps you can take. These include checking USB compatibility, changing the boot order, disabling Secure Boot, updating or resetting BIOS/UEFI firmware, and as a last resort, flashing the BIOS/UEFI firmware. Always remember to backup your data before making any changes to your system.

How can I check the compatibility of my USB drive with a UEFI system?

To check the compatibility of your USB drive, you can try using a different USB drive that is known to be compatible with UEFI systems. You can also consider updating the firmware of your existing USB drive by visiting the manufacturer’s website and downloading any available firmware updates.

How do I change the boot order in the BIOS/UEFI settings?

To change the boot order in the BIOS/UEFI settings, you need to restart your computer and enter the BIOS/UEFI setup. The key to enter the setup varies depending on your system’s manufacturer (commonly F2, F10, or the Delete key). Once in the setup, navigate to the boot order settings, usually under a tab labeled ‘Boot’, and set the USB drive as the first boot device. Remember to save the changes before exiting the setup for the changes to take effect.

What is Secure Boot and how can I disable it?

Secure Boot is a feature in UEFI that prevents booting from unauthorized devices. To disable Secure Boot, enter the BIOS/UEFI setup and navigate to the Secure Boot option, typically found under a tab labeled ‘Security’ or ‘Boot’. Set Secure Boot to ‘Disabled’ and save the changes before exiting the setup.

How can I update the BIOS/UEFI firmware?

To update the BIOS/UEFI firmware, visit the manufacturer’s website and look for firmware updates specific to your system model. Download the latest firmware update and follow the manufacturer’s instructions for installation. It is important to proceed with caution and ensure that you have a backup of important data before updating the firmware.

What should I do if none of the troubleshooting steps work?

If none of the troubleshooting steps work, you can try resetting the BIOS/UEFI settings to their default values. This can be done in the BIOS/UEFI setup by selecting the option to reset settings to default or similar. If the issue persists, you can consider flashing the BIOS/UEFI firmware with the latest version provided by the manufacturer. However, flashing firmware should only be done if there is a specific reason to do so and following the manufacturer’s instructions.

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