@george1421 Thank you very much for those suggestions. I’ll dig and share a way to do it.
My purpose is to do a Fully automated ubuntu 20.04.2 Desktop (UEFI) installation via FOG’s iPXE.
I got more than 100 Workstations and need to make it viable with an Ansible post-installation.
In the first time i wanted to do it with preseed but autoinstall seems to be the new shit so i’ll try it out.
To do Secure boot with Ubuntu 20.04 you’re right we need the signed kernels.
I need to RTM and do some tests.
Don’t you think chainloading signed grub via iPXE in FOG could be a more efficient and easier way to do tasks centralized over all grub’s options ?
For example those files (chainloaded) could boot via GRUB2 a secure boot installation for example :