How do I solve Error 13: Invalid or unsupported executable format when trying to install Ubuntu

system-installation unetbootin

The bootloader that is supposed to load the Ubuntu live USB that was created with UNetbootin is not loading correctly. I recommend scrapping the UNetbootin Ubuntu live USB and trying again with the Ubuntu USB creator application for your operating system that is recommended at the official Ubuntu website. See this question: What is the proper way of creating installation media from Ubuntu iso?.

If you are making the Ubuntu live USB on windows with Rufus, which is the recommended application, there are detailed step-by-step instructions accompanied by several screenshots at this answer.

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