[MinnowBoard] How can I set MAC address in EFI shell!?

[Gerard Bucas]

Anything on the East Coast soon!?



> On Jul 10, 2015, at 8:35 PM, John Hawley <john.hawley at intel.com> wrote:
> 
> *looks at the calendar*
> 
> Right now my schedule looks something like:
> 
> DEF CON
> Linuxcon NA
> Albuquerque Mini-Maker Faire
> 
> I want to say there's supposed to be something else in there but I can't
> remember what it is.
> 
> - John
> 
>> On 7/10/2015 11:31 AM, Gerard Bucas wrote:
>> Thanks John (sort of! ;) )!
>> 
>> So this implies that there are some confidential "Realtek tools/utilities"
>> that allow one to "program" a MAC address into their NIC chips! Right!?
>> 
>> So which conferences will you be in early August!!?
>> 
>> Curious...
>> 
>> Gerard
>> 
>> 
>> 
>> -----Original Message-----
>> From: elinux-MinnowBoard
>> [mailto:elinux-minnowboard-bounces at lists.elinux.org] On Behalf Of John
>> Hawley
>> Sent: Friday, July 10, 2015 2:18 PM
>> To: MinnowBoard Development and Community Discussion
>> Subject: Re: [MinnowBoard] How can I set MAC address in EFI shell!?
>> 
>> If you've got a board with a MAC address of all 0s you'll need to RMA it to
>> have the MAC address set, or if you happen to be at a conference where I'll
>> be, let me know, and bring your bored and I can fix it for you.
>> 
>> - John 'Warthog9' Hawley
>> 
>>> On 7/10/2015 10:59 AM, Dave Smith wrote:
>>> This was true on one of my boards as well.
>>> I was told it was because it was one of the first production boards 
>>> built. Still waiting on a resolution/utility to fix it.
>>> 
>>> --
>>> Dave Smith, PE
>>> @devunwired
>>> 
>>>> On Friday, July 10, 2015 at 11:57 AM, Gerard Bucas wrote:
>>>> 
>>>> Yes - all zeros!
>>>> 
>>>> Anything I can do to fix this!?
>>>> 
>>>> 
>>>> 
>>>>> On Jul 10, 2015, at 7:56 PM, John 'Warthog9' Hawley 
>>>>> <warthog9 at eaglescrag.net <mailto:warthog9 at eaglescrag.net>> wrote:
>>>>> 
>>>>>> On 07/10/2015 10:27 AM, Gerard Bucas wrote:
>>>>>> Somehow my MAC address on one of my minnowBoard MAX's got screwed up.
>>>>>> 
>>>>>> Does anyone know how to write a new address into nvram (or wherever 
>>>>>> it is
>>>>>> stored) using the EFI shell?
>>>>>> 
>>>>>> I am using latest 0.81 firmware.
>>>>>> 
>>>>>> While on this topic, how is the MAC address initially created 
>>>>>> during manufacturing (is there some utility the factory runs to set 
>>>>>> the MAC address for each new minnow board produced)? Also where 
>>>>>> exactly is it stored?
>>>>>> 
>>>>>> My firmware got corrupted (so I "bricked" this board) and had to 
>>>>>> use my DediProg SF100 to write a new (0.81) firmware to the flash chip.
>>>>>> After that
>>>>>> it boots fine and everything seems back to normal but somehow my 
>>>>>> MAC address got screwed up in the process.
>>>>>> 
>>>>>> I own a number of minnowMAX boards and have noticed that the MAC 
>>>>>> address is normally "retained" even when one completely erases and 
>>>>>> re-writes the flash memory chip (using a DediProg SF100), so this 
>>>>>> says to me that the MAC address is not stored in the same flash 
>>>>>> memory chip that contains the firmware/BIOS.
>>>>>> 
>>>>>> Would like to learn more about this...
>>>>> 
>>>>> The MAC address for the NIC isn't stored in the nvram firmware, and 
>>>>> the process of writing it into the NIC itself is permanent. What 
>>>>> exactly are you seeing with your MAC address? Is it all 0's?
>>>>> 
>>>>> - John 'Warthog9' Hawley
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>>> 
>>> 
>>> 
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