I hit this bug and got in a nasty loop with a package that requires openntpd or ntp (resulting in broken install when attempting to switch between them). This is the mythtv-backend-master package.
And I can't get this workaround to work, removing both packages then rebooting and trying to install openntpd again gave the permission denied error. I needed to delete /etc/apparmour.d/usr.sbin.ntpd manually. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1011998 Title: package openntpd 3.9p1+debian-9 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openntpd/+bug/1011998/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs