What is the difference between upgrading packages using the dist-upgrade and upgrading the packages from /usr/lib/update-notifier/apt-check --package-names ?
The reason I'm asking is, the machine I'm upgrading is running the service unattended-upgrades which I believe runs a apt-process in the background. When I run dist-upgrade (using Ansible) and the unattended-upgrades is also trying to upgrade packages I get the error message (obviously) usr/bin/apt-get dist-upgrade \' failed: E: Could not get lock /var/lib/dpkg/lock-frontend, but when I try to create a list of the packages that needs to be upgraded using /usr/lib/update-notifier/apt-check --package-names and upgrade these using the apt-module in Ansible I get no errors.
Any ideas?
