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: echo -e "rm /run/net-*.conf\nrm /run/netplan/*.yaml" >> /etc/dropbear-initramfs/config update-initramfs -u After that, netplan actually works again. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1813394 Title: DROPBEAR_IFDOWN=* takes interface down but leaves netplan config To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dropbear/+bug/1813394/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs