Added NVME drive to my mobo and lost network

A

adresner

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Mar 22, 2023
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New to Proxmox, have been pretty amazed so far but am currently on the fence whether I will continue or not.

I have come to the understanding that proxmox can't handle hardware changes without renaming network cards breaking networking? Can you someone explain this and also tell me if there is something configuration step upon install that I should have done to prevent this?

I did see some threads with some vague info about nano into a networking config file, but it wasn't written for pros. I also saw something about renaming the connection so the name doesn't change?

Thank you for your help
 
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adresner said:
New to Proxmox, have been pretty amazed so far but am currently on the fence whether I will continue or not.

I have come to the understanding that proxmox can't handle hardware changes without renaming network cards breaking networking? Can you someone explain this and also tell me if there is something configuration step upon install that I should have done to prevent this?

I did see some threads with some vague info about nano into a networking config file, but it wasn't written for pros. I also saw something about renaming the connection so the name doesn't change?

Thank you for your help
Click to expand...
The nic predictables name is based on pci slot position. But some motherboard (mainly desktop motherboard), with nvme (as they are also pci device), is changing the slots id internally. (I never see this on a server).

The good way can be to fix name based on mac address with .link files.
 
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spirit said:
The nic predictables name is based on pci slot position. But some motherboard (mainly desktop motherboard), with nvme (as they are also pci device), is changing the slots id internally. (I never see this on a server).

The good way can be to fix name based on mac address with .link files.
Click to expand...
Is there a noob guide you are aware of on this? step by step? thanks!
 
The Debian page in my previous post details how to do that fairly well. You just need to create a .link file under /etc/systemd/network/. For example, create the file /etc/systemd/network/10-persistent-net.link, then put these contents into it:

Code: 
 [Match]
 MACAddress=01:23:45:67:89:ab

 [Link]
 Name=lan0

This will assign the interface with the Mac address 01:23:45:67:89:ab the name lan0. If you don't know the Mac address of your NIC, you can use ip a to determine it. For example, given the following (shortened) output:

Code: 
[..]
2: enp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master vmbr0 state UP group default qlen 1000
    link/ether 02:42:1a:2a:a3:81 brd ff:ff:ff:ff:ff:ff
[..]

The Mac address of the interface currently named enp4s0 is 02:42:1a:2a:a3:81. So to assign it the name interface0 you would need to create a .link file with these contents:

Code: 
 [Match]
 MACAddress=02:42:1a:2a:a3:81

 [Link]
 Name=interface0
 
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nano /etc/systemd/network/10-persistent-net.link

[Match]
MACAddress=01:23:45:67:89:ab

[Link]
Name=lan0

ctrl O ctrl X

Then upon reboot, that should be static to lan0?

:D

I have 6 NICs. I can add for all of them like?>

[Match]
MACAddress=01:23:45:67:89:ab

[Link]
Name=lan0

[Match]
MACAddress=01:23:45:67:89:af

[Link]
Name=lan1

[Match]
MACAddress=01:23:45:67:89:ah

[Link]
Name=lan2

[Match]
MACAddress=01:23:45:67:89:au

[Link]
Name=lan3
 
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Answering my own question here. Setting up the link file works for 1 NIC, but not for 6 unless I should format that differently

Also, when it does work for that one NIC, the new name is not reflected in the GUI, only when viewing my network config: ip a
 
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Last edited:
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There probably is. There is the MAC address option, so that each NIC is named the MAC address? that rule might cover all my NICs with 1 file? However, what a name for a NIC

I see in the man file, each file should have a unique name.

Maybe
10-persistent-net.link
9-persistent-net.link
8-persistent-net.link
7-persistent-net.link
6-persistent-net.link
etc?

But the name in the GUI won't change?
 
Odd just this morning I added a QNAP QM2-2P10G1T card which has 10Gbit ethernet and 2xNVME drives. It came up the existing NIC didn't work. I updated the network settings from the console, and it came back up after reboot.
 
ejwi12 said:
Odd just this morning I added a QNAP QM2-2P10G1T card which has 10Gbit ethernet and 2xNVME drives. It came up the existing NIC didn't work. I updated the network settings from the console, and it came back up after reboot.
Click to expand...
I have seen that card, neat. Can you share the steps in updating from the console?
 
adresner said:
I have seen that card, neat. Can you share the steps in updating from the console?
Click to expand...
modprobe for the new NIC
ip link show
find the device with the MAC address
add nic to "bridge-ports" in /etc/network/interfaces
 
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