Virtual Box "система в настоящее время не настроена для сборки модулей ядра" 16.04 (xenial)

Я попытался установить виртуальную коробку, но я получаю следующую ошибку.

$ sudo /sbin/vboxconfig 
[sudo] password for dude: 
vboxdrv.sh: Building VirtualBox kernel modules.
This system is not currently set up to build kernel modules (system extensions).
Running the following commands should set the system up correctly:

  apt-get install linux-headers-4.4.0-24-generic
(The last command may fail if your system is not fully updated.)
  apt-get install linux-headers-generic
vboxdrv.sh: failed: Look at /var/log/vbox-install.log to find out what went wrong.
This system is not currently set up to build kernel modules (system extensions).
Running the following commands should set the system up correctly:

  apt-get install linux-headers-4.4.0-24-generic
(The last command may fail if your system is not fully updated.)
  apt-get install linux-headers-generic

There were problems setting up VirtualBox.  To re-start the set-up process, run
  /sbin/vboxconfig
as root.

Мое текущее ядро:

$ uname -r
4.4.0-24-generic

Попытка обновить заголовки дает мне следующее.

$ sudo apt-get upgrade && sudo apt-get install linux-headers-generic
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
linux-headers-generic is already the newest version (4.4.0.21.22).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Попытался установить linux-headers-4.4.0-24-generic напрямую из deb, по-прежнему получая ошибки. Из apt-get я получаю:

$ sudo apt-get install linux-headers-4.4.0-24-generic
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package linux-headers-4.4.0-24-generic is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'linux-headers-4.4.0-24-generic' has no installation candidate

Конечно, должен быть способ исправить это. Какие-либо предложения? Помогите!