iPXE boot di-netboot-assistant?

[Yvan Masson <yvan@masson-informatique.fr>]

Hi,

I need to deploy many Debian workstations, so I want to boot those with 
PXE. I can not configure the DHCP server, so I would like to use iPXE 
scripting capabilities.

I have configured di-netboot-assistant and tftpd-hpa on my laptop, so 
that it provides a Buster netboot installer. However, when I boot 
another computer with iPXE, I can't find which commands I should run to 
boot this Buster image.

I have tried the following commands:
 dhcp
 chain tftp://my_laptop_ip/d-i/n-a/pxelinux.0

It loads pxelinux but then fails complaining that it can't load 
ldlinux.c32. I found a few things on the web but I did not figure out 
how to adapt it to my setup, see for example:
https://groups.google.com/forum/#!topic/linux.debian.user/y1k1aWbZQAc


Any idea is very welcome.

Regards,
Yvan