$ dmesg | grep e1000e [ 5.643760] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k [ 5.643761] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 5.644308] e1000e 0000:00:1f.6: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode [ 5.877838] e1000e 0000:00:1f.6: The NVM Checksum Is Not Valid [ 5.907340] e1000e: probe of 0000:00:1f.6 failed with error -5
Under Windows 7 Ethernet port works fine: I can connect to the Internet. According to Windows, I have Intel(R) Ethernet Connection I219-V.
I have searched for "official" Linux drivers, but none is listed as supporting I219-V. However, e1000e is listed as supporting I218-V, and I've got a confirmation from e1000-devel mailing list that e1000e should support I219-V. Just in case I tried using the latest version 3.3.4 of e1000e, but the error was the same: "The NVM Checksum Is Not Valid."
It looks like indeed there is a mismatch of the checksum of the non-volatile memory of I219-V.
I have tried another ASUS laptop of the same model, and the error was the same, so this does not look like an accidental corruption.
Neither ASUS nor Intel customer support could suggest any solution.
I have discovered Intel Ethernet Connections Boot Utility, but according to the documentation (for version 18.104.22.168) it is only intended for PCI, not OEM on-board, Ethernet cards. However, I decided to run it without parameters just to print the list of Intel network ports, and this is what I've got:
$ sudo ./bootutil64e Intel(R) Ethernet Flash Firmware Utility BootUtil version 22.214.171.124 Copyright (C) 2003-2016 Intel Corporation Type BootUtil -? for help Port Network Address Location Series WOL Flash Firmware Version ==== =============== ======== ======= === ============================= ======= 1 D017C2201F59 0:31.6 Gigabit N/A FLASH Not Present
I do not quite understand what "FLASH Not Present" means here.
I posed a question on SuperUser.SE about fixing the NVM checksum. Here I am asking if and how anyone managed to successfully install Linux with working Ethernet on an ASUSPRO B8430UA laptop or on any other laptops with Intel Ethernet Controllers which had "The NVM Checksum Is Not Valid" error.