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[Solved] How can I keep eth0 without systemd?
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Nreal
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PostPosted: Thu Dec 21, 2023 9:07 pm    Post subject: [Solved] How can I keep eth0 without systemd? Reply with quote

This doesn´t work without systemd I gues?

How should I rename my eno1 network card back to eth0 as it gives lots of trouble?

I dont even know how to restart my eno1 :)

Code:
Optional: Disable or override predictable network interface naming
Network device names such as eth0 or wlan0 as provided by the kernel are normally changed on system boot (see dmesg) by the /lib/udev/rules.d/80-net-setup-link.rules udev rule and the NamePolicy in /lib/systemd/network/99-default.link.

This behavior may be disabled in several ways:

Symlink /etc/systemd/network/99-default.link to /dev/null: ln -s /dev/null /etc/systemd/network/99-default.link.
Create a lower-numbered .link file in /etc/systemd/network which assigns a different name to the interface.
Pass net.ifnames=0 on the kernel command line.
Reference: https://systemd.io/PREDICTABLE_INTERFACE_NAMES/


# ifconfig
eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.249 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fd85:3a99:5fac:0:48d8:83d:72b5:1629 prefixlen 64 scopeid 0x0..
Code:

* Stopping apache2 ...
AH00557: apache2: apr_sockaddr_info_get() failed for jimms
AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1. Set the 'ServerName' directive globally to suppress this message                                                                [ ok ]
 * Bringing up interface eth0
 *   ERROR: interface eth0 does not exist
 *   Ensure that you have loaded the correct kernel module for your hardware
 * ERROR: net.eth0 failed to start
 * Bringing up interface eth0
 *   ERROR: interface eth0 does not exist
 *   Ensure that you have loaded the correct kernel module for your hardware
 * ERROR: net.eth0 failed to start
 * ERROR: cannot start netmount as net.eth0 would not start



Last edited by Nreal on Sat Dec 23, 2023 1:18 pm; edited 1 time in total
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pietinger
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PostPosted: Thu Dec 21, 2023 9:13 pm    Post subject: Reply with quote

The easiest way is to give your kernel this command line parameter: net.ifnames=0
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Nreal
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PostPosted: Thu Dec 21, 2023 9:18 pm    Post subject: Reply with quote

How can I give kernel these parameters?
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pietinger
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PostPosted: Thu Dec 21, 2023 9:43 pm    Post subject: Reply with quote

Nreal wrote:
How can I give kernel these parameters?

It depends how you boot your kernel. Please see:
https://wiki.gentoo.org/wiki/User:Pietinger/Tutorials/Kernel_Commandline_Parameter
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toralf
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PostPosted: Thu Dec 21, 2023 9:53 pm    Post subject: Reply with quote

With grub look into /etc/default/grub
Code:
#
# Examples:
#
# Boot with network interface renaming disabled
# GRUB_CMDLINE_LINUX="net.ifnames=0"
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sMueggli
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PostPosted: Fri Dec 22, 2023 5:30 pm    Post subject: Re: How can I keep eth0 without systemd? Reply with quote

Nreal wrote:
How should I rename my eno1 network card back to eth0 as it gives lots of trouble?


Hard to believe that the name "eth0" causes less trouble than "eno1". Instead of workarounding I would simply fix the underlying problem.
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Nreal
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PostPosted: Sat Dec 23, 2023 1:18 pm    Post subject: Reply with quote

Thank you very much, problem solved :D
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