[systemd-devel] Networkd: How to diagnose interface set to "unmanaged"?

[Silvio Knizek]

Am Donnerstag, dem 12.09.2024 um 11:09 -0600 schrieb Ben Little:
> Hello this is related to an issue I am experiencing on Manjaro. I have raised the issue here: [https://forum.manjaro.org/t/systemd-networkd-reports-device-as-unmanaged/167912](https://forum.manjaro.org/t/systemd-networkd-reports-device-as-unmanaged/167912)
> 
> To restate the content of that post:
> 
> My networking configuration file:
> 
> ```
> # /etc/systemd/network/wired.network
> [Match]
> Name=en*
> 
> [Network]
> DHCP=yes
> ```
> 
> After system boot, I run networkctl and get
> 
> ```
> IDX LINK   TYPE    OPERATIONAL SETUP
>   1 lo     looback carrier     unmanaged
>   2 enp2s0 ether   off         unmanaged
> ```
> 
> I increased log verbosity to debug and see
> 
> ```
> enp2s0: Saved new link: ifindex=2, iftype=ETHER(1), kind=n/a
> enp2s0: Saved original MTU 1500 (min: 68, max:9194)
> enp2s0: Saved permanent hardware address: 00:00:de:ad:be:ef
> enp2s0: Saved IPv6 link-local address generation mode: eui64
> enp2s0: Flags change: +MULTICAST +BROADCAST
> enp2s0: udev initialized link
> enp2s0: Found driver: r8169
> enp2s0: Link state is up-to-date
> enp2s0: State changed: pending -> initialized
> enp2s0: Unmanaging interface
> enp2s0: State changed: initialized -> unmanaged
> ```
> 
> Those last two lines are the concerning ones. I don't know why the interface is set to unmanaged. Is there any way to get networkd to print why it's reaching that case?
> 
> Thanks,

Hi,

can you please show a

```bash
networkctl status enp2s0
```

This should show some more information.

Also, the `off` lloks suspicious, as there is no carrier or something else shutting down the interface.

BR  
Silvio