Hello akaradag I found an internal article related specifically to this issue. Here it is:     Thanks
Hi all,   I have a Dell-R710 server and there are two external NIC(Intel 82576 - Gigabit ET Dual Port Server Adapter) on that. And all ports of each NIC came"flash disabled" from vendor. I found a tool BootUtil[1] to enable flash but I can not.    lspci -vv output;   04:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)         Subsystem: Intel Corporation Gigabit ET Dual Port Server Adapter  lspci -n 04:00.0 0200: 8086:10c9 (rev 01) 04:00.1 0200: 8086:10c9 (rev 01)   04:00.0 0200: 8086:10c9 (rev 01)        Subsystem: 8086:a04c         Flags: bus master, fast devsel, latency 0, IRQ 34         Memory at de340000 (32-bit, non-prefetchable)          Memory at de400000 (32-bit, non-prefetchable) [size=4M]         I/O ports at ecc0 [size=32]         Memory at de338000 (32-bit, non-prefetchable) [size=16K]         Capabilities:          Kernel driver in use: igb         Kernel modules: igb     04:00.1 0200: 8086:10c9 (rev 01)         Subsystem: 8086:a04c         Flags: bus master, fast devsel, latency 0, IRQ 44         Memory at de3a0000 (32-bit, non-prefetchable) [size=128K]         Memory at de800000 (32-bit, non-prefetchable) [size=4M]         I/O ports at ece0 [size=32]         Memory at de33c000 (32-bit, non-prefetchable) [size=16K]         Capabilities:          Kernel driver in use: igb         Kernel modules: igb "8086:a04c" is a customer version and BootUtil returns "Unsupported feature" for it. What can i do to enable pxe for this card.     [1] [URL]
How to enable PXE for extarnal NIC Intel 82576