Notably after the upgrade an old version docker-containerd-shim process was still running : root 13189 1 0 2020 ? 02:10:52 docker-containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/deadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef -address /var/run/docker/containerd/docker-containerd.sock -containerd-binary /usr/bin/docker-containerd -runtime-root /var/run/docker/runtime-runc
Docker would not restart properly after killing process 13189 but it worked with a reboot. As I suspect it could be related to kernel (cgroup abilities for example?) please note that if the latest installed kernel was linux-image-4.4.0-217-generic (4.4.0-217.250) the running kernel was 4.4.0-148 : $ uname -a Linux hostnameRedacted 4.4.0-148-generic #174-Ubuntu SMP Tue May 7 12:20:14 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux $ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1956223 Title: upgrade to from 18.06.1 to 18.09.7 failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/docker.io/+bug/1956223/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs