Renaming network interfaces Proxmox 7

[jbrack1]

Just installed a second network card and it's being detected first and motherboard nic is second.

I would like my motherboard nic to be enp1s0 and my 2nd nic to be enp2s0

Tried creating a ".link" file in /etc/systemd/network, which changes the names, but the correct interface still won't assign correctly.

 

[shrdlicka]

Hi,
I wouldn't exactly say it gets detected first, since these names are predictable names of interfaces that don't change .

What's in your ".link" file did you take a look at something like this [1] i presume.

[1] https://staging.forty.sh/posts/2021-01-15-renaming-network-interfaces/

 

[jbrack1]

Yes, I followed that page. This makes neither interface want to work.

10-rename-enp1s0.link

[Match]
Path=pci-0000:02:00.0
[Link]
Name=enp1s0

10-rename-enp2s0.link

[Match]
Path=pci-0000:01:00.0
[Link]
Name=enp2s0

/etc/network/interfaces

auto lo
iface lo inet loopback

iface enp1s0 inet manual
#RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (Motherboard)

#2nd NIC
auto enp2s0
iface enp2s0 inet manual


auto vmbr0
iface vmbr0 inet static
        address 10.47.2.104/24
        bridge-ports enp2s0
        bridge-stp off
        bridge-fd 0
        bridge-vlan-aware yes
        bridge-vids 2-4094

 

[shrdlicka]

I'm not sure hat that will work. I would think those interfaces already exist with their enp[12]s0 names. Maybe try to name them something like eth[12].

You can also check the log journalctl -b if you see some error about renaming the interfaces.

 

[jbrack1]

Yes, that was it. Changing the interfaces to a different name worked.

 

[Volker Lieder]

Hi, we have the same problem here:
before reboot:
6: eno1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 04:42:1a:1a:ae:18 brd ff:ff:ff:ff:ff:ff
altname enp130s0f0

After reboot
6: eth4: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 04:42:1a:1a:ae:18 brd ff:ff:ff:ff:ff:ff
altname enp130s0f0

The interface enp130s0f0 seems to be defined after each reboot as an other eth(x)
I will try solution with /etc/systemd/network/10-persistent-net.link but why does this change within the last updates?

Best regards,
Volker