@jaywink: thanks, it worked for me too!
For you all, here are the steps:
<code> >sudo apt purge virtualbox-dkms >sudo apt purge virtualbox >sudo sudo mokutil --disable-validation >reboot </code>
then, on reboot, disable the secure boot through the GUI
<code> >sudo apt install virtualbox >sudo apt install virtualbox-dkms </code>
@jaywink: thanks, it worked for me too!
For you all, here are the steps:
<code> validation
>sudo apt purge virtualbox-dkms
>sudo apt purge virtualbox
>sudo sudo mokutil --disable-
>reboot
</code>
then, on reboot, disable the secure boot through the GUI
<code>
>sudo apt install virtualbox
>sudo apt install virtualbox-dkms
</code>