Guide for UBUNTU

Step 1: Download the UEFI Shell ISO

  1. Open your browser Go to: https://github.com/pbatard/UEFI-Shell/releases

  2. Scroll to the latest release and download UEFI-Shell…RELEASE.iso

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Step 2: Format the USB Drive to FAT32

  1. Press the Super (Windows) key and type Disks in the search.
    Open “Disks” (aka GNOME Disks).

  2. On the left panel, select your USB drive.

Double-check it’s not your system drive!

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  1. Click the three dots.

  2. Choose “Format Disk…”:

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  1. Click Format . (if its ask you are you sure you want to format the disk you can click format..)

Step 3: Create a FAT32 Partition on the USB (After Disk Format)

What you should see now:

After clicking “Format…” in Step 2, your USB drive in Disks should show:

Partitioning: Master Boot Record (MBR)

One big block of “Free Space”

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Now create the partition:

  1. Select the USB drive (make sure it's still highlighted).

  2. Click the + (plus) button below the free space area.

In the "Create Partition" window:

  1. Size: Leave it as default (use the full free space) and click next

  2. Name: Call it something like EFI-USB

  3. Type: choose “For use with all systems and devices (FAT)“

  4. click Create.

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after clicking create:

  1. Wait for the partition to finish creating.

  2. Click the Play button (in Disks) to mount the new partition (if it didn’t mount automatically).

  3. Your USB will now appear in the Files app as a mounted drive.

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Step 4: Mount the UEFI Shell ISO and Copy the EFI Folder

Now that your USB is formatted and mounted, you’ll copy the necessary boot files from the ISO into the USB.

  1. Locate the ISO file (shoud be in the downloads folder)

  2. mount the iso by right click and choose "Open With Disk Image Mounter"

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  3. click the mounted ISO

  4. copy the efi folder (right click and then copy)

  5. navigate to your mounted USB drive (mine is the EFI-USB)

  6. Paste the efi folder in the root of the USB

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Your USB drive is now ready

You can safely eject it (important) from Ubuntu and plug it into any computer that supports UEFI.
After booting from the USB, the system will launch directly into the UEFI Shell environment.

You can put EFI programs such as AFUEFI in the root directory of the usb drive and use these commands in the EFI shell.