Need Help Removing Network Card

[Sakriguos]

When I installed proxmox, I installed a 4 port network card for a pfsense virtual machine. i scrapped that and debridged the network card connections but when i remove the network card, proxmox won't connect to the network. The ethernet is connected to the motherboard. I have VM's set up and don't want to rebuild proxmox. I just don't understand why i can't remove the network card. I need the PCI slots for dual graphics cards. Also when I use terminal, after the card is removed it says the netwok card ports and the motherboard port are down. I can post any pictures of the configurations when i get off work along with requested pictures. Thank you.

 

[Dunuin]

I just don't understand why i can't remove the network card.

Because when adding or removing any PCIe card or M.2 SSD the enumeration of the PCIe bus IDs will change and the NICs are named after the bus it is using. So the name of your NIC will change and won't match your existing network configuration anymore.

1.) remove the NiC
2.) connect display + keyboard to server and log in as root via console
3.) run ip a to see the new name of your NICs
4.) Optionally create a backup of your old network configuration: cp /etc/network/interfaces /etc/network/interfaces.old. Then use nano /etc/network/interfaces to edit your network configuration and replace all occurrences (at least 2 per NIC) of the old NIC names with the new ones.
5.) reboot or run systemctl restart networking

 

[Sakriguos]

Because when adding or removing any PCIe card or M.2 SSD the enumeration of the PCIe bus IDs will change and the NICs are named after the bus it is using. So the name of your NIC will change and won't match your existing network configuration anymore.

1.) remove the NiC
2.) connect display + keyboard to server and log in as root via console
3.) run ip a to see the new name of your NICs
4.) Optionally create a backup of your old network configuration: cp /etc/network/interfaces /etc/network/interfaces.old. Then use nano /etc/network/interfaces to edit your network configuration and replace all occurrences (at least 2 per NIC) of the old NIC names with the new ones.
5.) reboot or run systemctl restart networking[/IC [/QUOTE]

Because when adding or removing any PCIe card or M.2 SSD the enumeration of the PCIe bus IDs will change and the NICs are named after the bus it is using. So the name of your NIC will change and won't match your existing network configuration anymore.

1.) remove the NiC
2.) connect display + keyboard to server and log in as root via console
3.) run ip a to see the new name of your NICs
4.) Optionally create a backup of your old network configuration: cp /etc/network/interfaces /etc/network/interfaces.old. Then use nano /etc/network/interfaces to edit your network configuration and replace all occurrences (at least 2 per NIC) of the old NIC names with the new ones.
5.) reboot or run systemctl restart networking

I attempted to do this but I have no clue what I doing

 

[Dunuin]

Replace all occurrences of "enp10s0" with "enp4s0" and remove the lines that contain "enp5s0", "enp6s0", "enp7s0" and "enp8s0".