DPKG was interrupted error. Ran "sudo dpkg --configure -a" and now my terminal is frozen

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http://askubuntu.com – As stated above I was trying to update my system (particularly my Nvidia drivers) and I got the "dpkg was interrupted, you must manually run "sudo dpkg --configure -a" error. I have run the code multiple times, but it always gets frozen at Processing triggers for initramfs-tools... update-initramfs: Generating /boot/initrd.img-3.5.0-23-generic Is this supposed to take forever or is there something wrong? I let it sit for over 2 hours once with no results. Thanks! (HowTos)