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Yeah yeah, we know you're special (lemmy.dbzer0.com)

submitted 8 months ago by [email protected] to c/[email protected]

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[–] [email protected] 11 points 8 months ago (3 children)

I have a hatred for the enp id thing as it isn't any better for me. It changes on me every time I add/remove a hard drive or enable/disable the WiFi card in the BIOS. For someone who is building up a server and making changes to it, this becomes a real pain. What happens if a drive dies? Do I have to change the network config yet again over this?

[–] [email protected] 7 points 8 months ago* (last edited 8 months ago) (1 children)

How is that happening? The number on the bus shouldn't change from adding or removing drives. I could imagine this with disabling a card in UEFI / BIOS if that basically stops reporting the bus entry completely. But drives?

Anyhow, if I'm not mistaken, you can assign a fixed name based on the reported MAC.

[–] [email protected] 3 points 8 months ago* (last edited 8 months ago) (1 children)

It is only the nvme drives that do it. That damn PCI busses and iommu groups get renumbered every damn time I remove or add one. The SATA is safe though.

[–] [email protected] 4 points 8 months ago

The arch wiki lists some methods to permanently name network interfaces at https://wiki.archlinux.org/title/Network_configuration#Change_interface_name

[–] [email protected] 4 points 8 months ago* (last edited 8 months ago)

Use a systems rule to give it a consistent name based on its MAC address, driver, etc. I just had this exact same problem setting up my servers.

root@prox1:~# cat /etc/systemd/network/10-persistent-10g.link 
[Match]
Driver=atlantic

[Link]
Name=nic10g

root@prox1:~# cat /etc/systemd/network/10-persistent-1g.link 
[Match]
Driver=igb

[Link]
Name=nic1g