[Bug 2051358] [NEW] Start of systemd service on physical network devices using a udev rule has stopped working

[Franck Iaropoli]

Public bug reported:

Hi everyone,

We have an issue with latest version of systemd on Ubuntu 22.04
(249.11-0ubuntu3.12).

We have a udev rule running a service (custom wpa supplicant) on physical wired network devices that is not working during boot process anymore.
The same rule works fine with a usb dongle I unplug and plug back after the machine has started.

A colleague has rebuilt systemd package by reverting below patch and
everything started working again

core/device: ignore DEVICE_FOUND_UDEV bit on switching root (LP: #2037281)
    File: debian/patches/lp2037281-core-device-ignore-DEVICE_FOUND_UDEV-bit-on-switching-roo.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=00f86f0b20f794f30aabe7181912d2ec2207e292

This is causing an issue to access network when the machine is starting.

```
ACTION=="add|move", SUBSYSTEM=="net", TAG+="systemd", ENV{DEVTYPE}!="wlan", DEVPATH!="/devices/virtual/*",\
  ENV{SYSTEMD_WANTS}+="supplicant-wired@$name.service"
```

Does above patch requires a change in the udev rule we are using ?

Thanks in advance for your help.

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2051358

Title:
  Start of systemd service on physical network devices using a udev rule
  has stopped working

Status in systemd package in Ubuntu:
  New

Bug description:
  Hi everyone,

  We have an issue with latest version of systemd on Ubuntu 22.04
  (249.11-0ubuntu3.12).

  We have a udev rule running a service (custom wpa supplicant) on physical wired network devices that is not working during boot process anymore.
  The same rule works fine with a usb dongle I unplug and plug back after the machine has started.

  A colleague has rebuilt systemd package by reverting below patch and
  everything started working again

  core/device: ignore DEVICE_FOUND_UDEV bit on switching root (LP: #2037281)
      File: debian/patches/lp2037281-core-device-ignore-DEVICE_FOUND_UDEV-bit-on-switching-roo.patch
      https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=00f86f0b20f794f30aabe7181912d2ec2207e292

  This is causing an issue to access network when the machine is
  starting.

  ```
  ACTION=="add|move", SUBSYSTEM=="net", TAG+="systemd", ENV{DEVTYPE}!="wlan", DEVPATH!="/devices/virtual/*",\
    ENV{SYSTEMD_WANTS}+="supplicant-wired@$name.service"
  ```

  Does above patch requires a change in the udev rule we are using ?

  Thanks in advance for your help.

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