Proxmox 6.0 renames network card and can not use it

I was re-reading this thread as I've also been experiencing the rename issue on a Supermicro board with dual onboard NICs (https://ark.intel.com/content/www/u...hernet-converged-network-adapter-x540-t2.html).

I initially used the net.ifnames=0 in /etc/default/grub to prevent getting "rename" devices upon reboot, breaking my access except via IPMI. This works, and I have eth0 and eth1 as my devices right now. However, I'd prefer to do this correctly with newer naming conventions.

The output of udevadm test-builtin net_id /sys/class/net/eth0 and /sys/class/net/eth1 are as follows:

Code: 
Load module index
Network interface NamePolicy= disabled on kernel command line, ignoring.
Parsed configuration file /usr/lib/systemd/network/99-default.link
Created link configuration context.
Using default interface naming scheme 'v240'.
ID_NET_NAMING_SCHEME=v240
ID_NET_NAME_MAC=enx002590fa0f0e
ID_OUI_FROM_DATABASE=Super Micro Computer, Inc.
ID_NET_NAME_ONBOARD=eno1
ID_NET_NAME_PATH=enp3s0f0
Unload module index
Unloaded link configuration context.

Load module index
Network interface NamePolicy= disabled on kernel command line, ignoring.
Parsed configuration file /usr/lib/systemd/network/99-default.link
Created link configuration context.
Using default interface naming scheme 'v240'.
ID_NET_NAMING_SCHEME=v240
ID_NET_NAME_MAC=enx002590fa0f0f
ID_OUI_FROM_DATABASE=Super Micro Computer, Inc.
ID_NET_NAME_ONBOARD=eno1
ID_NET_NAME_PATH=enp3s0f1
Unload module index
Unloaded link configuration context.

As you can see, the ID_NET_NAME_ONBOARD is identical, and my default policy in /lib/systemd/network/99-default.link is:

NamePolicy=keep kernel database onboard slot path
MACAddressPolicy=persistent

I'm wondering if the best/proper path forward is to net.ifnames=0 from Grub and rebuild it, then change my NamePolicy to remove onboard, allowing path to be used. (refs: https://manpages.debian.org/buster/udev/systemd.link.5.en.html, https://wiki.debian.org/NetworkInterfaceNames)

Or, would it be more correct to add Match and Link configurations, either in 10-persistent-net.link or 99-default.link and not change the NamePolicy default order?

Thank you.
 
As I wrote earlier, my resolution was to change the NamePolicy to path only. I actually added the 99-default.link to /etc/systemd/network in order for it to persist.

Like you note, onboard is not unique and slot seems to be the same as onboard. I don't care to have the whole MAC, so path is the only reasonable option left. It's unique and persistent.

My /etc/systemd/network/99-default.link is simply
Code: 
[Link]
NamePolicy=path
 
jebbam said:
I have four interfaces on my machine, all Intel 82571EB. Two of the interfaces came up as ens2f0 and ens2f1 and I was able to configure them via the Proxmox web GUI. The other two interfaces didn't appear in the GUI. They could be seen via `ls /sys/class/net/` and/or `ip link` as "rename3" and "rename4". To fix this I created this file:

/etc/systemd/network/10-eth2.link

With these contents:

[Match]
MACAddress=00:12:34:56:78:9A

[Link]
Name=eth2

and rebooted. It was then visible in the Proxmox GUI.

I should note this is a Proxmox install added to Debian Buster install, so may vary a bit.
Click to expand...
you saved my day, thanks!
 
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jebbam said:
I have four interfaces on my machine, all Intel 82571EB. Two of the interfaces came up as ens2f0 and ens2f1 and I was able to configure them via the Proxmox web GUI. The other two interfaces didn't appear in the GUI. They could be seen via `ls /sys/class/net/` and/or `ip link` as "rename3" and "rename4". To fix this I created this file:

/etc/systemd/network/10-eth2.link

With these contents:

[Match]
MACAddress=00:12:34:56:78:9A

[Link]
Name=eth2

and rebooted. It was then visible in the Proxmox GUI.

I should note this is a Proxmox install added to Debian Buster install, so may vary a bit.
Click to expand...
Thx this solved my problem
 
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