linux-kernel - Re: Failed to start Raise network interfaces error

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Date:   Thu, 14 Dec 2023 15:47:59 +0100
From:   Ivan Vecera <ivecera@...hat.com>
To:     Julia Lawall <julia.lawall@...ia.fr>
Cc:     "David S. Miller" <davem@...emloft.net>,
        linux-kernel@...r.kernel.org
Subject: Re: Failed to start Raise network interfaces error

On 14. 12. 23 15:33, Julia Lawall wrote:
> 
> 
> On Tue, 12 Dec 2023, Ivan Vecera wrote:
> 
>>
>>
>> On 12. 12. 23 17:33, Julia Lawall wrote:
>>>> Look at 'systemd.net-naming-scheme' man page for details how the interface
>>>> names are composed.
>>> After booting into 6.7.0-rc4, I have the following in
>>> /etc/network/interfaces:
>>>
>>> # This file describes the network interfaces available on your system
>>> # and how to activate them. For more information, see interfaces(5).
>>>
>>> source/etc/network/interfaces.d/*
>>>
>>> # The loopback network interface
>>> auto lo
>>> iface lo inet loopback
>>>
>>> auto enp24s0f0
>>> iface enp24s0f0 inet dhcp
>>
>> Just change 'enp24s0f0' in /etc/network/interfaces to 'enp24s0f0np0'
> 
> Hello,
> 
> I don't know if anything can be done about it, but this change introduces
> complexities.  The people who manage the cluster that I use say that the
> name of the network interface should be predictable, which is no longer
> the case because it now depends on the kernel version.

In this case, you can configure custom udev rule that will fix the name 
of the interface... Like:

host ~ # cat /etc/udev/rules.d/70-network.rules
ACTION=="add", SUBSYSTEM=="net", DRIVERS=="i40e",\
ATTR{address}=="xx:xx:xx:xx:xx:xx", NAME="enp24s0f0"
ACTION=="add", SUBSYSTEM=="net", DRIVERS=="i40e",\
ATTR{address}=="yy:yy:yy:yy:yy:yy", NAME="enp24s0f1"

Regards,
Ivan