I'm a beginner. I don't know how to find the FreeDOS image on the ISO. When I look on my current disc (which was generated by a friend), I see an IMAGES directory, but there is no fdubcd.igz in it.

I have downloaded a fresh copy of the ubcd411.iso file to my computer. How do I proceed?

What might be the cause of the above error? I'm using the boot CD on an eMachines computer.