[Arm-dev] wireless mac address

[F L]

Hello Fabian,

I'll look at that one, there also seems to be a confix.txt in /boot, that
the RPI uses for several things.

What I noticed though, is that if there's no cfg script in network-scripts
for the device (ifcfg-wlan0), after NetworkManager starts, the Mac addr
seems to be random. (while on other Centos/RHEL/etc machines I have, in
that case the Mac address/device would just not show.

When that script is there, NetworkManager consistenly shows the correct Mac
(which depends on the serial of the board, I read somewhere)

thanks,

Ron



On Tue, Apr 3, 2018 at 1:37 AM, Fabian Arrotin <arrfab at centos.org> wrote:

> On 02/04/18 04:19, cjvijf at gmail.com wrote:
> > Hello,
> >
> >
> > I don't know if this is a dev issue/problem,  but I bought 2 RPI 3 about
> > a year ago, and installed centos on one (the other one I haven't even
> > used yet).
> >
> > It seems the Mac address changes every reboot? (into something 'random',
> > because the first 2 numbers indicate the manufacturer, right?
> >
> > Is this a known issue?  is it an OS or hardware issue?
> >
> >
> > thanks,
> >
> >
> > Ron
>
> Something I discovered when we were looking at WiFi support for the RPI3
> : there is one file "controlling" the needed firmware for it :
> /usr/lib/firmware/brcm/brcmfmac43430-sdio.txt
>
> If you look at that file, we decided to comment the macaddress line, to
> avoid all the provisioned RPI3 boards to suddenly uses the same static
> mac address everywhere.
> So the file (as present in the rpi image we provided) is looking like
> this :
> #macaddr=00:90:4c:c5:12:38
>
> That can probably explain what you're seeing ?
>
> --
> Fabian Arrotin
> The CentOS Project | https://www.centos.org
> gpg key: 56BEC54E | twitter: @arrfab
>
>
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>
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