Clarification:
I followed the hint in /etc/apparmor.d/tunables/home.d/ubuntu and ran
root@ubuntu:~# sudo dpkg-reconfigure apparmor
In the window that popped up, I added "/home/" (which is the location of
my home directories) and clicked OK.
This solved the problem
--
You received this bug not
I have just hit this problem on Ubuntu 18.04, and I was able to solve it by
running
root@ubuntu:~# sudo dpkg-reconfigure apparmor
Unlike the previous poster, I am not aware of any sudden powercycles. I
simply attempted to run a docker container. The docker command and
output are below, with PI
