How to get UEFI booting from USB stick to work?

[markot]

Hello,

I have been trying to install iPXE on USB stick, so I could start PXE install from Clonezilla server.

But I don't get it working. When I try to write the ISO file taken from the website using Rufus to the USB stick, Rufus tells that the ISO file is not UEFI compatible.

Also, when I have tried to format the memory stick to FAT32 and manually try to start ipxe.efi from shell, I get error message "Could not boot image: Exec format error"

Are there any step By step tutorials how to make UEFI PXE booting working? The BIOS boot option is not available on the Computers, only UEFI.