Using PXE configuration and editing the default file to download the ISO and a configuration the configuration will not install on UEFI based bios
In this case, the initrd was built not using the Broadcom preboot files.
Testing a PXE preboot using Broadcom's PXE boot configuration, the device booted an EFI based model into automation as expected
However, because the customer edited the Default file to use ISO for installation and to use a file to unattend setup the computer this process is not supported
The customer edited the Default file to include:
DEFAULT install
LABEL install
KERNEL vmlinuz
INITRD initrd
APPEND root=/dev/ram0 ramdisk_size=1500000 ip=dhcp url=ftp://<internal IP>/LinuxDeploy/Ubuntu_22_04headless/ubuntu-22.04.1-live-server-amd64.iso autoinstall ds=nocloud-net;s=http://<Internal IP>/LinuxDeploy/Ubuntu_22_04headless/cloud-init-bios/ cloud-config-url=/dev/null
What the customer is attempting to perform is not supported
Development is looking into a procedure to perform a Scripted OS Install of Ubuntu machines as a product enhancement for future releases.