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The instructions on how to break the booting and get into the EBL shell and upgrade the firmware is available here:
Flashing d03/d05 boards/wiki/spaces/CTT/pages/25088393943
The command line once you are on the EBL shell in the lab are these (depending whether you are on a D03 or D05):
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PXE reboot the machine to install ERP 16.12 with the following on the kernel opts field (for D03 only):
earlycon console=ttyS0,115200 -- earlycon console=ttyS0,115200
- Once the machine has installed and shows a prompt, reboot it and make sure it'll get to the prompt again unassisted (no clicks involved)
- Pxe boot it again to make sure it reinstalls and gets to the prompt again