Public bug reported:
When booting an rpi that does not have built-in ethernet (such as cm3,
rpi3a+, etc) with the release candidate images for groovy, no ethernet
interface is configured after starting when a usb ethernet dongle is
used. The interface is detected, but not configured.
In /etc/netplan/50-cloud-init.yaml for the groovy image it has:
# This file is generated from information provided by the datasource. Changes
# to it will not persist across an instance reboot. To disable cloud-init's
# network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
ethernets:
eth0:
dhcp4: true
match:
driver: bcmgenet smsc95xx lan78xx
optional: true
set-name: eth0
version: 2
This did used to work correctly in focal, probably because the driver
restriction wasn't present. This is the yaml that was generated for the focal
image:
# This file is generated from information provided by the datasource. Changes
# to it will not persist across an instance reboot. To disable cloud-init's
# network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
ethernets:
eth0:
dhcp4: true
optional: true
version: 2
In my case, the usb dongle I have seems to use the ax88179_178a driver,
but presumably others would fail in the same way.
** Affects: cloud-init (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1900904
Title:
netplan yaml for rpi groovy server prevents usb ethernet
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