As below - I am unable to define and add ethernet interfaces to my configuration. This same hardware previously worked fine on 1.2.x.
Please let me know if a bug submission is required.
vyos@vyos# ip a show eth0 2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000 link/ether 00:0d:b9:xx:xx:xx brd ff:ff:ff:ff:ff:ff  vyos@vyos# set interfaces ethernet eth0 hw-id 00:0d:b9:xx:xx:xx  vyos@vyos# commit [ interfaces ethernet eth0 ] VyOS had an issue completing a command. We are sorry that you encountered a problem while using VyOS. There are a few things you can do to help us (and yourself): - Contact us using the online help desk if you have a subscription: https://support.vyos.io/ - Make sure you are running the latest version of VyOS available at: https://vyos.net/get/ - Consult the community forum to see how to handle this issue: https://forum.vyos.io - Join us on Slack where our users exchange help and advice: https://vyos.slack.com When reporting problems, please include as much information as possible: - do not obfuscate any data (feel free to contact us privately if your business policy requires it) - and include all the information presented below Report time: 2021-10-01 22:52:36 Image version: VyOS 1.3.0-epa1 Release train: equuleus Built by: Sentrium S.L. Built on: Tue 28 Sep 2021 14:11 UTC Build UUID: e67d1006-5116-444a-b984-e3c21de20f5d Build commit ID: 701f08deb2cd8f Architecture: x86_64 Boot via: installed image System type: bare metal Hardware vendor: PC Engines Hardware model: apu1 Hardware S/N: <redacted> Hardware UUID: Unknown Traceback (most recent call last): File "/usr/libexec/vyos/conf_mode/interfaces-ethernet.py", line 161, in <module> verify(c) File "/usr/libexec/vyos/conf_mode/interfaces-ethernet.py", line 73, in verify ethtool = Ethtool(ifname) File "/usr/lib/python3/dist-packages/vyos/ethtool.py", line 88, in __init__ raise ValueError(f'Could not determine auto-negotiation settings '\ ValueError: Could not determine auto-negotiation settings for interface eth0! noteworthy: cmd 'ethtool eth0' returned (out): Settings for eth0: Supports Wake-on: pumbg Wake-on: d Current message level: 0x00000033 (51) drv probe ifdown ifup Link detected: no returned (err): Cannot get device settings: No such device [[interfaces ethernet eth0]] failed Commit failed  vyos@vyos#