mac address problem with nvidia MCP55V-Pro

[Jon Morby]

hi … 

I don't suppose anyone has any experience updating or fixing MAC addresses on Nvidea nVIDIA MCP55V-Pro (Supermicro H8DMT+) ?

Following an experimental reflash everything went well, except afterwards we noticed the mac address had been reset

  link/ether 66:77:44:22:33:12 brd ff:ff:ff:ff:ff:ff





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Jon Morby
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[Denis 'GNUtoo' Carikli]

On Mon, 3 Dec 2012 19:42:59 +0000
Jon Morby <[e-mail]> wrote:
> hi …
>
> I don't suppose anyone has any experience updating or fixing MAC
> addresses on Nvidea nVIDIA MCP55V-Pro (Supermicro H8DMT+) ?
>
> Following an experimental reflash everything went well, except
> afterwards we noticed the mac address had been reset
>
> link/ether 66:77:44:22:33:12 brd ff:ff:ff:ff:ff:ff
> Is the following command a valid workarround?
> ifconfig eth0 hw ether 00:17:a4:01:02:03

Denis.

[Stefan Tauner]

On Mon, 3 Dec 2012 19:42:59 +0000
Jon Morby <[e-mail]> wrote:
> hi …
>
> I don't suppose anyone has any experience updating or fixing MAC addresses on Nvidea nVIDIA MCP55V-Pro (Supermicro H8DMT+) ?
>
> Following an experimental reflash everything went well, except afterwards we noticed the mac address had been reset
>
> link/ether 66:77:44:22:33:12 brd ff:ff:ff:ff:ff:ff

did it work out for you eventually?
would be nice if we could document this in the mailing list archive and
our hw support page (e.g. the offsets of the mac address) ;)
-- 
Kind regards/Mit freundlichen Grüßen, Stefan Tauner

[Jon Morby]

Hi

Sadly not. We now have 2 dead boxes. 

I'm going to have a further play with this during the week ... I'll keep you posted :)

Sent from my iPhone

On 9 Dec 2012, at 23:50, Stefan Tauner <[e-mail]> wrote:
> On Mon, 3 Dec 2012 19:42:59 +0000
> Jon Morby <[e-mail]> wrote:
> > hi …
> >
> > I don't suppose anyone has any experience updating or fixing MAC addresses on Nvidea nVIDIA MCP55V-Pro (Supermicro H8DMT+) ?
> >
> > Following an experimental reflash everything went well, except afterwards we noticed the mac address had been reset
> >
> > link/ether 66:77:44:22:33:12 brd ff:ff:ff:ff:ff:ff
>
> did it work out for you eventually?
> would be nice if we could document this in the mailing list archive and
> our hw support page (e.g. the offsets of the mac address) ;)
> -- 
> Kind regards/Mit freundlichen Grüßen, Stefan Tauner

[Stefan Tauner]

Hi,

I'd love to know the outcome of the stuff below...

On Sun, 9 Dec 2012 23:53:45 +0000
Jon Morby <[e-mail]> wrote:
> Hi
>
> Sadly not. We now have 2 dead boxes.
>
> I'm going to have a further play with this during the week ... I'll keep you posted :)
>
> Sent from my iPhone
>
> On 9 Dec 2012, at 23:50, Stefan Tauner <[e-mail]> wrote:
> > On Mon, 3 Dec 2012 19:42:59 +0000
> > Jon Morby <[e-mail]> wrote:
> > > hi …
> > >
> > > I don't suppose anyone has any experience updating or fixing MAC addresses on Nvidea nVIDIA MCP55V-Pro (Supermicro H8DMT+) ?
> > >
> > > Following an experimental reflash everything went well, except afterwards we noticed the mac address had been reset
> > >
> > > link/ether 66:77:44:22:33:12 brd ff:ff:ff:ff:ff:ff
> >
> > did it work out for you eventually?
> > would be nice if we could document this in the mailing list archive and
> > our hw support page (e.g. the offsets of the mac address) ;)

[Ward Vandewege]

Hi all,

On Sat, Jun 01, 2013 at 02:23:31PM +0200, Stefan Tauner wrote:
> I'd love to know the outcome of the stuff below...

This is a known issue on mcp55-based boards. That chipset stores the mac
address in the rom image.

A long time ago I wrote a script to change the mac address in a (coreboot)
mcp55 rom image. I've attached it. I assume it would still do the right
thing, but I have not tried it for a long time.

Thanks,
Ward.

-- 
Ward Vandewege             | CTO, Free Software Foundation
GPG Key: 25F774AB          | http://status.fsf.org/ward
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