How to obtain list of installed packages

[Ralf Mardorf]

On Wed, 11 May 2016 20:03:43 +0200, Oliver Grawert wrote:
>hi,
>On Mi, 2016-05-11 at 17:54 +0200, Ralf Mardorf wrote:
>
>> un  apparmor       <none>       <none>       (no description
>> available)  
>
>this looks like you dont really have an install but some minimal
>bootstrapped system like a build chroot ... normally the ubuntu-
>standard task is installed on all ubuntu systems (except build chroots
>etc that have not been installed using any kind of installer) which
>would have pulled in apparmor. 
>
>ogra at styx:~$ apt-cache show apparmor|grep ^Task
>Task: standard, ubuntu-core, ubuntu-core, mythbuntu-backend-master,
>ubuntu-touch-core, ubuntu-touch, ubuntu-touch, ubuntu-sdk


When I installed the Wily development release the server install
was the minimalist I could find. IIRC it came without X, but I
explicitly needed to removed apparmor and other packages.

# grep "Removing apparmor" /mnt/moonstudio/var/log/apt/term.log
Removing apparmor (2.10-0ubuntu2) ...