Reconfigure Partially Installed Packages in Ubuntu

When I try to upgrade my ubuntu version from 14.04 to 14.10, the system rebooted during the upgrade. When I try to login to the gnu desktop, it goes back to the login screen again and again.

So I have to login in using the “tty” terminal by “ctrl+alt+F3”, and then issue the following command:

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sudo dpkg --configure -a

There maybe something wrong logging in using the mosted updated kernal, so we can choose to log in using an previous version of kernal(provided if is not removed yet]).

Then if we still want to upgrade, we can do it when we successfully log in to the system.