How to get a list of installed software packages? [closed]

Posted by mblaettermann on Ask Ubuntu See other posts from Ask Ubuntu or by mblaettermann
Published on 2012-05-16T18:15:50Z Indexed on 2012/11/14 5:12 UTC
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12.04

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re-installation

Possible Duplicate:
How to list all installed packages?

I am on a "grown" system. My initial setup was using Ubuntu 9.04.

But now with the 12.04 Update I got stuck. My System is freezing or wired errors occour.

I want to reinstall my system on a clean partition.

How can I get a list of the packages I installed in my system? I want a list with the base packages not all the dependecies, so I can install all packages on my clean install again with the correct (maybe new) dependencies.

I other words: I want to retrieve a list of all packages installed with apt-get directly. Not the ones it additionally installs with these packages.

Thanks!

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