Hi:
While testing differences betweenn the oficial Odroid 3.10 distro and Armbian 5.x distro I've noticed that the MAC address changes in the same device when changing the SD card.
So, to confirm this:
- It's the MAC address of the Ethernet stored in the SD?
- How can I change the MAC address, so I can duplicate my SD card and assign a different address to each device?
Thanks in advance.
Sebas
MAC Address on C1
-
- Posts: 159
- Joined: Thu Jun 08, 2017 2:49 am
- languages_spoken: english
- ODROIDs: c2
- Has thanked: 16 times
- Been thanked: 12 times
- Contact:
-
- Posts: 875
- Joined: Sat Dec 12, 2015 4:34 pm
- languages_spoken: english,german,slovene
- ODROIDs: XU4, HC1, C2, C1+
- Has thanked: 49 times
- Been thanked: 126 times
- Contact:
Re: MAC Address on C1
Many of those boards don't know how to handle MAC. Sometimes its set in u-boot, sometimes is not set all ...
Override is fixing it at first boot. Check this for details:
https://forum.armbian.com/search/?q=cha ... &fromCSE=1
Override is fixing it at first boot. Check this for details:
https://forum.armbian.com/search/?q=cha ... &fromCSE=1
- tobetter
- Posts: 7172
- Joined: Mon Feb 25, 2013 10:55 am
- languages_spoken: Korean, English
- ODROIDs: Many
- Location: Paju, South Korea
- Has thanked: 384 times
- Been thanked: 1052 times
- Contact:
Re: MAC Address on C1
MAC address of C1 is stored in eFuse and every single board has different MAC address.
Aren't you able to see MAC address is same on the same board with HK official Ubuntu image, while different MAC address between different boards with the same uSD?
Aren't you able to see MAC address is same on the same board with HK official Ubuntu image, while different MAC address between different boards with the same uSD?
- These users thanked the author tobetter for the post:
- Sebas_Ledesma (Wed Aug 28, 2019 10:41 pm)
-
- Posts: 159
- Joined: Thu Jun 08, 2017 2:49 am
- languages_spoken: english
- ODROIDs: c2
- Has thanked: 16 times
- Been thanked: 12 times
- Contact:
Re: MAC Address on C1
Thanks for your reply.
I'm using the same SBC to do the test.
When I place the microSD with Ubuntu minimal I get one MAC, when I switch to the Armbian microSD I get another MAC address.
Thats both in my discovery app and also in the router (a TPLINK TR-ER5120).
Sebas
- tobetter
- Posts: 7172
- Joined: Mon Feb 25, 2013 10:55 am
- languages_spoken: Korean, English
- ODROIDs: Many
- Location: Paju, South Korea
- Has thanked: 384 times
- Been thanked: 1052 times
- Contact:
Re: MAC Address on C1
I am not sure about Armbian, I have not tried on ODROID-C1 yet.Sebas_Ledesma wrote: ↑Wed Aug 28, 2019 10:28 pmThanks for your reply.
I'm using the same SBC to do the test.
When I place the microSD with Ubuntu minimal I get one MAC, when I switch to the Armbian microSD I get another MAC address.
Thats both in my discovery app and also in the router (a TPLINK TR-ER5120).
Sebas
Can you do run this command on Ubuntu and Armbian to see if it's same as the MAC address?
Code: Select all
$ cat /sys/class/efuse/mac
-
- Posts: 159
- Joined: Thu Jun 08, 2017 2:49 am
- languages_spoken: english
- ODROIDs: c2
- Has thanked: 16 times
- Been thanked: 12 times
- Contact:
Re: MAC Address on C1
Code: Select all
sebas@my2200:~$ uname -a
Linux my2200 3.10.107-13 #2 SMP PREEMPT Wed Jun 19 02:31:43 -03 2019 armv7l armv7l armv7l GNU/Linux
sebas@my2200:~$ cat /sys/class/efuse/mac
00:1e:06:10:9d:76
Code: Select all
sebas@arm2200:~$ uname -a
Linux arm2200 5.2.1-odroidc1 #5.91 SMP Tue Jul 16 12:11:40 CEST 2019 armv7l GNU/Linux
sebas@arm2200:~$ cat /sys/class/efuse/mac
cat: /sys/class/efuse/mac: No such file or directory
Sebas
Who is online
Users browsing this forum: No registered users and 0 guests