Проблема с установкой

когда я выполняю команду

sudo apt-get -f install ssl-cert 

Я получаю результат:

E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.

И затем когда я работаю, команда sudo dpkg - настраивают-a, результат:

Setting up linux-image-4.4.0-51-generic (4.4.0-51.72) ...
Running depmod.
Setting up linux-image-4.4.0-51-generic (4.4.0-51.72)update-initramfs: deferring update (hook will be called later)
initrd.img(/boot/initrd.img-4.4.0-51-generic
) points to /boot/initrd.img-4.4.0-51-generic
 (/boot/initrd.img-4.4.0-51-generic) -- doing nothing at /var/lib/dpkg/info/linux-image-4.4.0-51-generic.postinst line 491.
vmlinuz(/boot/vmlinuz-4.4.0-51-generic
) points to /boot/vmlinuz-4.4.0-51-generic
 (/boot/vmlinuz-4.4.0-51-generic) -- doing nothing at /var/lib/dpkg/info/linux-image-4.4.0-51-generic.postinst line 491.
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.4.0-51-generic /boot/vmlinuz-4.4.0-51-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.4.0-51-generic /boot/vmlinuz-4.4.0-51-generic
update-initramfs: Generating /boot/initrd.img-4.4.0-51-generic
run-parts: executing /etc/kernel/postinst.d/pm-utils 4.4.0-51-generic /boot/vmlinuz-4.4.0-51-generic
run-parts: executing /etc/kernel/postinst.d/unattended-upgrades 4.4.0-51-generic /boot/vmlinuz-4.4.0-51-generic
run-parts: executing /etc/kernel/postinst.d/update-notifier 4.4.0-51-generic /boot/vmlinuz-4.4.0-51-generic
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 4.4.0-51-generic /boot/vmlinuz-4.4.0-51-generic

И это зависающий там. И ЦП 100% все время. Моя версия является Xubuntu 16.04 с ядром:

4.4.0-31-универсальный # SMP с 50 Ubuntu среда 13 июля 0:07:12 GNU/Linux UTC 2016 x86_64 x86_64 x86_64