How to put iPXE script content in grub.conf?

Question

GRUB

I welcome everyone!
There is usb with grub2 on board. One of the grub menu options is to load the iPXE menu from an external server:

menuentry "Menu iPXE {
        linux16 /ipxe.lkrn 
        initrd16 /ipxe.cfg
}

Contents of ipxe.cfg:

#!ipxe
dhcp ; chain http://pxe.server/menu.ipxe

Question: Is it possible to transfer the contents of the ipxe.cfg file directly to the grub.cfg file in some tricky way?
I tried to specify strings as ipxe.lkrn kernel parameters, but this thing does not work.
I tried to do it by analogy with grub4dos:

set config_line="dhcp ; chain http://pxe.server/menu.ipxe"
linux16 /ipxe.lkrn --config-file=$config_line

But it doesn't roll either.

Answer 1

The menu item should look like this:

menuentry "Menu iPXE" {
        linux16 /ipxe.lkrn dhcp \; chain http://pxe.server/menu.ipxe
}

PS: if only grub2 could "on the fly" without crutches and ipxe.lkrn pull off boot.ipxe.org , there would be no price for it. )