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From: Lars Poulsen <lars@beagle-ears.com>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: How do I get my Pi4 (Fedora) to use a real and stable MAC
 address?
Date: Sun, 15 Sep 2024 13:58:09 -0700
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On 9/14/2024 3:31 PM, Lawrence D'Oliveiro wrote:
> On Sat, 14 Sep 2024 08:37:58 -0700, Lars Poulsen wrote:
> 
>> On 9/13/2024 6:37 PM, Lawrence D'Oliveiro wrote:
>>
>>> On Fri, 13 Sep 2024 16:49:58 +0100, The Natural Philosopher wrote:
>>>
>>>> Oh. its network manager that does it
>>>
>>> I disable NetworkManager on machines I consider “servers” or
>>> “infrastructure”. Then I manually configure the network interfaces.
>>
>> So how do I manually configure the ethernet port to use the hardware MAC
>> address?
> 
> Every NIC has a built-in address, which it should default to.
> 
> Or, a quick look at the docs
> <https://manpages.debian.org/8/ip-link.8.en.html> gives
> 
>      ip link set «device» address «addr»

Not quite responsive:
1) I do not want to invent a MAC address, I want to tell it to use the 
manufacturer's supposedly unique default address AFTER the 
OS/driver/network-manager/whatever has already wiped it out during the 
boot process. Your command example assumes that I know what it is.
2)As you can see in the subject line, I am running Fedora, not 
rasp(b)ian. Even if Fedora's GUI does not work on the RP4, I would 
rather run headless than have to learn Debian system management after a 
decade of living in RedHat world.