Network interface not up in Opensuse 15.1 CT with Proxmox 6.1

[gdhara]

Hi,

I have downloaded the latest Proxmox 6.1 and working around. I wanted to install Opensuse Leap OS 15.1 and 15.0 LXC container.
After download and installation of Opensuse LXC template eth0 network interface is not up after the OS boot. I have tried multiple ways to look what was the issue but not successful. When i download and install Centos or Ubuntu LXC containers i don''t have issues with Network interface it works as expected.
What could be the issue with OpenSUse LXC template ?
I have even tried to modify the network files with static and dynamic ip settings both doesn't work.

Output from operating system:-
---------------------------------------------------

suse:~ # ip add
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
17: eth0@if18: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 7e:57:49:e8:ec:43 brd ff:ff:ff:ff:ff:ff link-netnsid 0


suse:~ # ifup eth0
eth0 no-device


Regards,
Giridharan

 

[matrix]

Hi,
Can you put output of command: cat /etc/network/interfaces

 

[gdhara]

Hi,
Can you put output of command: cat /etc/network/interfaces

Hi,

The OS is Opensuse (core). I doubt it has interfaces file in it. Please find the output as requested

suse:~ # cat /etc/network/interfaces
cat: /etc/network/interfaces: No such file or directory

suse:~ # cat /etc/networks
#
# networks This file describes a number of netname-to-address
# mappings for the TCP/IP subsystem. It is mostly
# used at boot time, when no name servers are running.
#

loopback 127.0.0.0
link-local 169.254.0.0

# End.

 

[matrix]

Hi,

I guess the problem from openSUSE but u can fix that, just ip link set down then up with command:
ip link set eth0 down && ip link set eth0 up
then do ping google.com

 

[gdhara]

!!OMG!! - I never thought about ip link command. Thank you very much, the command you gave did the trick.
And i can see the ip address now in the container. Peace

 

[rollniak]

Hello,


Sorry for the top posting, but i have exactly the same problem.

thx to @matrix fort the workaround but this solution:


- can't be used if you plan to create a lot of LXC container
based on OpenSuSe template
- is not persistent after a reboot.

In fact a bug report is on the OpenSuse Bugzilla but no solution as comes out actually.
https://bugzilla.opensuse.org/show_bug.cgi?id=1130237

Any idea ?

Best Regards,
Rollniak

 

[matrix]

Hi @rollniak,

- can't be used if you plan to create a lot of LXC container
based on OpenSuSe template
- is not persistent after a reboot.

You could write a script in ~/.bashrc to make "link ip" if you have a lot of containers. That way you don't have to do it manually

 

[markusd]

What about /etc/sysconfig/network/ifcfg-eth0 ?

 

[pkcz]

This bug is fixed on upstream, maybe. Look at template opensuse-20200315.
"pveam update" shows old template still.

 

[janssensm]

This bug is fixed on upstream, maybe. Look at template opensuse-20200315.
"pveam update" shows old template still.

@pkcz Just out of curiosity, where would I find opensuse-20200315?

 

[oguz]

pve-container 3.0-23 in pvetest repository should fix this issue. it works also with the older opensuse template.

 

[pkcz]

I did saw it at linuxcontainers.org, what should be primary source of lxc templates.
Can we ask someone from Proxmox staff to kindly refresh their repo, please?
Thank you

 

[oguz]

Can we ask someone from Proxmox staff to kindly refresh their repo, please?

that'll also be updated soon. in the meantime you can use pve-container 3.0-23 from pvetest repository with the old template.