The box certainly needs to be fixed.
(In the meantime, a workaround if you _really_ need a cosmic box is probably to manually install the virtualbox-guest-dkms package; I haven't tested this locally though.)
The box certainly needs to be fixed.
(In the meantime, a workaround if you _really_ need a cosmic box is probably to manually install the virtualbox- guest-dkms package; I haven't tested this locally though.)