Comment 4 for bug 1918421

@matthewlloyd thanks for the heads-up -- I'd actually noticed this while testing something unrelated. There's currently a patch pending on ubuntu-settings (which produces ubuntu-raspi-settings which should remove the netplan eth0 hack in favour of a straight systemd link file which works nicely); LP: #1961618 has the details.

Probably better to clean up cruft like this rather than having netplan accept broken old syntax. If you want to work-around the situation before that lands you can simply rm /etc/netplan/10-rpi-ethernet-eth0.yaml and it *should* still work (because the ubuntu-raspi-settings package in jammy already had /lib/systemd/network/10-raspi-eth0.link to deal with the renaming.