New Device on Reboot

Alexander Sack asac at canonical.com
Wed Jun 10 18:08:36 UTC 2015


On Mon, Jun 8, 2015 at 11:39 PM, Bjorn Tillenius <bjorn at tillenius.me> wrote:
> On Mon, Jun 08, 2015 at 06:47:59PM +0100, Matthew Williams wrote:
>> Hi Folks,
>>
>> I recently got my hands on a RPi2 with snappy - so you're going to start
>> seeing my name on this list asking all sorts of stupid questions. Enjoy!
>>
>> Current one:
>>
>> Each time I start/reboot my pi it generates a new ECDSA key fingerprint
>> (and my router assigns it a new ip address each time. Is this expected
>> behaviour?
>
> I haven't seen the ECDSA key change, but the MAC address does indeed
> change on every boot. It seems like the MAC address is derived from the
> board serial number, but on my board /proc/cpuinfo reports a 0 serial:
>
>     Hardware    : BCM2709
>     Revision    : 0000
>     Serial      : 0000000000000000
>
> Maybe Loic or Oliver knows how make a real serial number appear there? I
> found some posts related to this issue, but I don't know how they apply
> to Snappy.
>

I don't think this was ever working for us. Anyone knows if this is
working fine with the RASPBIAN image?



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