boot and install windows server

[bluedark]

Hi all,
My ipxe system works wonderfully except one point : the boot on a windows server 2019 works well but before the installation, it tells me that it misses the media driver.
When I boot a hyper-v virtual machine in ipxe on the same windows server 2019 but having added the iso of the dvd, it works well.
The question is: how to boot the vm in ipxe and be able to install windows server 2019 without being able to add the iso of the dvd (if I am remote and that I can't add it in the vm)?
Thank you !

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for info (maybe important), my machines are in uefi