I started the installation of all the xfonts packages on my Ubuntu 14.04.1 system with
sudo apt-get install xfonts-*
While extracting a package (one of the hundreds of the list), the system got blocked. The mouse cursor worked, but all the windows were locked and a click anywhere or any button had no effect.
After a forced restart, I can work normally, but now I can't use aptitude! If I try to install a package, it says
dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem
And if I run that command, Ubuntu gets blocked again, while processing xfonts-100dpi or a similar package (it is always the same).
Can this problem be fixed in any way?