Add a system mac address to /mnt/flash/system_mac_address:
echo "0000.1234.5678" > /mnt/flash/system_mac_address
Add serial number info to /mnt/flash/veos_config:
echo "SYSTEMMACADDRE=0000.1234.5678" >> /mnt/flash/veos_config echo "SERIAL=JPE000001" >> /mnt/flash/veos_config echo "SERIALNUMBER=JPE000001" >> /mnt/flash/veos_config