[Bug 2038964] [NEW] raspi ethernet rename is racy

[Dave Jones]

Public bug reported:

The renaming of the ethernet interface (controlled by 10-raspi-eth0.link
in ubuntu-raspi-settings) turns out to be racy. Specifically, in the
final mantic server images (but not the desktop images), under armhf or
arm64, on the Raspberry Pi 3B+ (but not any other supported board,
including the 3B), the interface renames several times during boot. By
the end, the interface is left in the enxMACMACMAC state and the netplan
configuration fails to apply.

Will attach kern.log from an affected platform, and another from an
unaffected platform.

** Affects: ubuntu-settings (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: raspi-image

** Tags added: raspi-image

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https://bugs.launchpad.net/bugs/2038964

Title:
  raspi ethernet rename is racy

Status in ubuntu-settings package in Ubuntu:
  New

Bug description:
  The renaming of the ethernet interface (controlled by 10-raspi-
  eth0.link in ubuntu-raspi-settings) turns out to be racy.
  Specifically, in the final mantic server images (but not the desktop
  images), under armhf or arm64, on the Raspberry Pi 3B+ (but not any
  other supported board, including the 3B), the interface renames
  several times during boot. By the end, the interface is left in the
  enxMACMACMAC state and the netplan configuration fails to apply.

  Will attach kern.log from an affected platform, and another from an
  unaffected platform.

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