Setting a MAC on Rock64 U-Boot
#1
Hello everyone,

I just updated a cluster of Rock64 4G boards I have and they all forgot their MAC address now and have defaulted to 82:57:28:5d:f7:9d (no idea where this MAC comes from, the ones I had set where very different and started with "da:19:c8").

I was setting the MACs in the bootloader script via boot.txt and ./mkscr using this guide (wiki tab) but now that evidently does not work.

Asking that the OS side (forum post) did not produce much so I came here to ask:

How can I set the MAC of my Rock64s in uboot?

Thanks,
K
  Reply
#2
I don't know about u-boot, but you can fix this on OS level fairly easily.

nano /etc/systemd/network/00-default.link

Code:
[Match]
MACAddress= 12:ac:66:34:01:32

[Link]
MACAddress=12:ac:66:02:02:02
NamePolicy=kernel database onboard slot path

That "da:19:c8" was done during Kernel change from 4.19 to 5.1 i believe, as they had to build a new u-boot since the old one wasn't working with the new Kernel.
  Reply
#3
Oh! That works really well! I wasn't aware that I could do that! Thank You very much!!! :-D
  Reply


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