Unattended upgrades are enabled even if disabled during the installer

[Marc Venturini]

I installed Ubuntu server 16.04.1 LTS. I used the ISO downloaded on the official website. During the installation I chose the default options everywhere except username and password. I chose the option "No automatic updates" when prompted. I immediately turned the machine off and I did not turn it on for a few days. When I powered it on again I immediately tried to install packages with apt-get. The following error message appeared.

E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?

"ps -aux" revealed that an unattended-upgrade process was running.

Expected behaviour: unattended-upgrade should not run when "No automatic updates" are selected during the installation.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1630107/+editstatus and add the package name in the text box next to the word Package.

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