Can't install ubuntu from usb, how?

Question

ubuntu

I'm trying to install ubuntu from usb. I put UEFI enable in the BIOS, I did not find security mode (boot). I boot from a flash drive, I get an error: file '/boot/' not found. Next, the grub console will pop up. How to install ubuntu?

Answer 1

Use the regular tool
www.ubuntu.com/download/desktop/create-a-usb-stick...

Answer 2

90% - the problem is due to a crookedly recorded image
with a regular disk creator, I also had problems, I have
the most reliable way - dd
https://habrahabr.ru/post/117050/
but this is a Linux utility, it will not work for Windows