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 Touch seeded packages, which is subscribed to initramfs-tools in Ubuntu. https://bugs.launchpad.net/bugs/1813394 Title: DROPBEAR_IFDOWN=* takes interface down but leaves netplan config Status in dropbear package in Ubuntu: Confirmed Status in initramfs-tools package in Ubuntu: Confirmed Bug description: On bionic, setting the network interface up (e.g. eno1) with DHCP now causes a /run/netplan/eno1.yaml and a /run/net-eno1.conf file to be written. The former gets imported by netplan after boot and causes the DHCP lease from the initrd to be around forever, which I think goes against the intent of DROPBEAR_IFDOWN=*. I have brewed up a workaround script that lives in /etc/initramfs- tools/scripts/init-bottom/hack-delete-netif-netplan.sh for now: #### ---- 8< cut >8 -------- #!/bin/sh PREREQ="" prereqs() { echo "$PREREQ" } case "$1" in prereqs) prereqs exit 0 ;; esac . /scripts/functions log_begin_msg "Deleting all network configuration that systemd could try to import" rm /run/net-*.conf rm /run/netplan/*.yaml log_end_msg #### ---- 8< cut >8 -------- I think that dropbear-intiramfs's init-bottom script should do this in addition to downing the interfaces that it finds via the DROPBEAR_IFDOWN pattern. Do you agree? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dropbear/+bug/1813394/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
