[fedora-arm] Stable MAC address on the Cubietruck (again)

Richard W.M. Jones rjones at redhat.com
Mon Dec 8 19:22:01 UTC 2014


I read the lengthy thread about unstable MAC addresses on the
Cubietruck from September.  However I'm still a bit confused about
what I need to do to get a stable MAC address.

Firstly my CT appears to have a non-zero SID:

  01c23800: 16516501 80808955 54494848 0500f05c    .eQ.U...HHIT\...

I'm using the following uboot and kernel, both supplied by Fedora 21
as far as I know:

  U-Boot 2014.04 (Aug 19 2014 - 00:11:39) Allwinner Technology
  1:      Fedora (3.17.4-301.fc21.armv7hl+lpae) 21 (Twenty One)

There are a few peculiar warnings at boot (see end of email), but
otherwise it appears to work.

However I don't get a stable MAC address.  It seems completely
random on each boot.  Today I've had:

  96:0c:ca:a9:c7:08
  7e:68:c9:80:b8:01
  ca:ea:b6:64:7b:5b

Any ideas?

Rich.


----------------------------------------------------------------------
Peculiar boot warnings:

*** Warning - bad CRC, using default environment
MMC Device 2 not found
no mmc device at slot 2
MMC Device 1 not found
no mmc device at slot 1
mmc0 is current device
Scanning mmc 0...
Found extlinux config /extlinux/extlinux.conf
Retrieving file: /extlinux/extlinux.conf
1117 bytes read in 110 ms (9.8 KiB/s)
Ignoring unknown command:  menu.c32
Ignoring unknown command:  600
Ignoring unknown command: default=Fedora-Xfce-armhfp-21-20141005



-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
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