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So my Problem occurs as i already mentioned in my title after i tried to upgrad my old version. For no reason the upgrade broke of after the installation. Now i am not able to upgrade anything the upgrade manager is always closing when i am trying to open it.

Hope you guys can help,

with kind regards

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Sounds like you might have to bite the bullet and just reinstall and start fresh. – Goddard Dec 21 '12 at 17:32

You might be able to fix it but it will be slower and crash more often. The best thing is just to make a solid backup of all your files and start over with a fresh 12.04.

I had the same issue when upgrading to 11.10, I fixed it but it wasn't as good as a fresh 11.10

Linked question:

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Open up a Terminal


sudo apt-get update


sudo apt-get upgrade
sudo apt-get dist-upgrade

if that fails try

sudo dpkg --configure -a

Also check if your sources.list is set to precise instead of oneiric at the end of each deb and deb-src line.

sudo gedit /etc/apt/sources.list
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