Am Montag, dem 28.10.2024 um 17:56 +0000 schrieb Henti Smith: > On Mon, 28 Oct 2024 at 13:47, Andrei Borzenkov > <[arvidj...@gmail.com](mailto:arvidj...@gmail.com)> wrote: > > > On Mon, Oct 28, 2024 at 3:07 PM Henti Smith > > <[he...@gaydonsmith.co.uk](mailto:he...@gaydonsmith.co.uk)> wrote: > > > > > > On Mon, 28 Oct 2024 at 10:38, Andrei Borzenkov > > > <[arvidj...@gmail.com](mailto:arvidj...@gmail.com)> wrote: > > > > > > > > On Thu, Oct 24, 2024 at 6:29 PM Henti Smith > > > > <[he...@gaydonsmith.co.uk](mailto:he...@gaydonsmith.co.uk)> wrote: > > > > > > > > > > Good day everybody > > > > > > > > > > I have two link files for mvc-sw1 and mvc-sw2. > > > > > > > > > > `mvc-sw1` > > > > > > > > > > ```ini > > > > > # Fixed MAC and name for eno2 (Switch 1 connection) when debug board > > > > > is plugged in > > > > > # Renamed to mvc-sw1 by PCI Address and set custom MAC address. > > > > > [Match] > > > > > Property=DEVPATH=/devices/pci0000:00/0000:00:10.0/0000:05:00.0/net/eno2 > > > > > > > > > > [Link] > > > > > MACAddress=02:00:00:00:05:00 > > > > > Name=mvc-sw1 > > > > > ``` > > > > > > > > > > `mvc-sw2` > > > > > > > > > > ```ini > > > > > # Fixed MAC and name for enp6s0 (Block Diagram) when debug board is > > > > > plugged in > > > > > # Renamed to mvc-sw2 by PCI Address and set custom MAC address. > > > > > [Match] > > > > > Property=DEVPATH=/devices/pci0000:00/0000:00:11.0/0000:06:00.0/net/enp6s0 > > > > > ``` > > > > > > > > These names are already the result of earlier renamoing. I am not sure > > > > systemd/udev/networkd will rename the second time. > > > > > > Would that be udev ? > > > > > > we're trying hard to use systemd for all our network management. If this > > > is not a realistic goal, what is the correct way of managing our network > > > with systemd alongside other tools ? > > > > Yes, networkd.link files provide the desired names and naming policy, it is > > systemd-udevd that applies them. > > > > You need to match on some intrinsic device properties and these rules must > > be present when systemd-udevd first sees and renames these interfaces. > > Which often means in initrd/initramfs. > > Good evening Andrei, > > Where can I find detailed information on where to find the names when > systemd-udevd sees the interface for the first time ? > > Silvio in my previous mail thread commented that I can use udevadm info > which is what I'm trying to do here. Is there another method to get the "pre > systemd" interface names that I should be using ? > > I cannot use mac addresses to match on, nor the Path as both are not reliable > in my use case, hence using the full DEVPATH from udevadm. > > Any assistance will be appreciated. > > Kind regards > Henti
Hi, why do you use `Property=DEVPATH=/devices/pci0000:00/0000:00:11.0/0000:06:00.0/net/enp6s0` and not `Path=0000:06:00.0`, as stated by <man:systemd.link>? What systemd version do you use, so I can reference online? Also, is your `.link` file applied? What are `networkctl status` and `networkctl status <interface_name>` saying? What says `udevadmin info /sys/class/net/<interface_name>` for all the interfaces in question? In the end, if your interface locations or hardware properties are *not* reliable, than *no* automatism in the world would be able to assign static values to them. BR Silvio
