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Author: Miroslav Rovis
Date:  
To: J. Fahrner
CC: Dng
Subject: Re: [DNG] eudev naming of network interfaces
On 171226-19:17+0100, J. Fahrner wrote:
> Hi,
> is there some problem with the naming of network interfaces?
>
> I have the following lines in my boot log:
>
> Sat Dec 23 10:41:48 2017: [....] Configuring network interfaces...ifquery:
> unknown interface eth0
> Sat Dec 23 10:41:48 2017: ifup: unknown interface eth0
> Sat Dec 23 10:41:48 2017: FAIL failed.
>
> My /etc/network/interfaces contains no eth0:
>
> # This file describes the network interfaces available on your system
> # and how to activate them. For more information, see interfaces(5).
>
> # The loopback network interface
> auto lo
> iface lo inet loopback


What ethers you have? Try:

# ip l show

and get back with the output. If no ethers recognized: drivers missing?

The ethN (where N can be 0,1... ) has been discussed a few times over on this ML. Try searching on
https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng (included in all mails)

E.g. the important file is:

/etc/udev/rules.d/70-persistent-net.rules
(comments there to read)

I have eudev, and I always set that file up manually to my liking.

I also have:

# cat /etc/default/grub | grep ifnames
GRUB_CMDLINE_LINUX="net.ifnames=0"
#

to rid me of stupid --and non-persistent, falsely claiming to be persistent-- naming.

--
Miroslav Rovis
Zagreb, Croatia
https://www.CroatiaFidelis.hr