Release vmlinuz and initrd alongside iso

[MonkZ]

Hi,

currently enabling booting via ipxe (https://ipxe.org/) over http needs 
a dedicated mirror that has vmlinuz and initrd extracted from the iso.

Would it be possible to release those files - already extracted from the 
iso - alongside those very isos?

This would enable ubuntu to create one iso, that can boot every version 
available directly from one usb stick or pxe server.

#!ipxe
dhcp
set http-server https://releases.ubuntu.com
kernel 
http://${http-server}/ubuntu/21.10/ubuntu-21.10-desktop-amd64.iso.vmlinuz
initrd 
http://${http-server}/ubuntu/21.10/ubuntu-21.10-desktop-amd64.iso.initrd
imgargs ubuntu-21.10-desktop-amd64.iso.vmlinuz root=/dev/ram0 
ramdisk_size=3000000 boot=casper ip=dhcp netboot=url 
url=http://${http-server}/os/ubuntu/21.10/ubuntu-21.10.x-desktop-amd64.iso
boot || shell

Something similar is done by Arch Linux. But they included the Let's 
Encrypt Root Certificate too, to enable boot via https, and they 
chainloaded a menu from their mirror to just have one iso or usbstick 
image to work indefinitely, as the critical information, what to boot 
would be loaded after the boot of ipxe.


Regards

MonkZ