I Tested netplan.io 0.103-0ubuntu5~20.04.2 inside a fresh Focal LXD container: $ lxc launch ubuntu-daily:focal ff $ lxc exec ff bash
=> Enabled focal-proposed & installed/upgraded netplan.io root@ff:~# dpkg -l | grep netplan ii libnetplan0:amd64 0.103-0ubuntu5~20.04.2 ii netplan.io 0.103-0ubuntu5~20.04.2 root@ff:~# rm /etc/netplan/* root@ff:~# cat /etc/netplan/00-ethernets.yaml network: version: 2 ethernets: all-en: dhcp4: true match: name: en* all-eth: dhcp4: true match: name: eth* root@ff:~# netplan get network: ethernets: all-en: dhcp4: true match: name: en* all-eth: dhcp4: true match: name: eth* version: 2 root@ff:~# netplan set network.ethernets=null root@ff:~# netplan get {} In accordance with https://wiki.ubuntu.com/NetplanUpdates I'm also attaching the full autopkgtest logs for those builds: https://git.launchpad.net/~slyon/+git/files/tree/LP1943120/focal_amd64.log https://git.launchpad.net/~slyon/+git/files/tree/LP1943120/focal_arm64.log https://git.launchpad.net/~slyon/+git/files/tree/LP1943120/focal_armhf.log https://git.launchpad.net/~slyon/+git/files/tree/LP1943120/focal_ppc64el.log https://git.launchpad.net/~slyon/+git/files/tree/LP1943120/focal_s390x.log ** Tags removed: verification-needed-focal ** Tags added: verification-done-focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942930 Title: Unset a subtree crashes To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1942930/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs