change MAC address tiny210 ?

i have two board tiny210, but mac address a same.
i can not program network, now, can you help me change mac address on
tiny210 ?

from http://www.arm9home.net/simple/index.php?t21893.html, you should try
to add a kernel commandline param :  ethmac=aa:bb:cc:dd:ee:ff
This should be done in the file FriendlyARM.ini i think.

HTH,

Laurent

I've the same problem.

I tryed to add ethmac=aa:bb:cc:dd:ee:ff with a valid mac but when I boot
linux can't find the ethernet card while if i put the factory value I get
the card working but with duplicate mac.

I believe you have to take a look into:
/etc/udev/rules.d/

There should be a file with a rule to rename your ethernet card device
based on the MAC address. If you simply delete that file or comment out the
corresponding line you'll always have it under "eth0" and you can change
your corresponding configs (e.g. /etc/network/interfaces - depending on the
Linux distribution you're using) to use namely eth0 for DHCP, hotplug etc.