I can confirm the workaround by boxeus works on Ubuntu 20.04 LTS. To improve on that, the lines can be added to the /etc/dropbear-initramfs/config config file instead to avoid upgrade issues. It is loaded towards the end of /usr/share/initramfs-tools/scripts/init-bottom/dropbear anyway.
I can confirm the workaround by boxeus works on Ubuntu 20.04 LTS. To improve on that, the lines can be added to the /etc/dropbear- initramfs/ config config file instead to avoid upgrade issues. It is loaded towards the end of /usr/share/ initramfs- tools/scripts/ init-bottom/ dropbear anyway.
Automation two-liner: *.yaml" >> /etc/dropbear- initramfs/ config
echo -e "rm /run/net-*.conf\nrm /run/netplan/
update-initramfs -u
After that, netplan actually works again.