Re: [Trisquel-users] Virtualbox on Libreboot w/Trisquel?

[vitacell]

Virtualbox and his dkms packages are GPL (free software), and runs fine  
everything, but you can not use USB-2.0 or USB-3.0, support USBs superior to  
1.1 you need to use proprietary extension packages.

https://www.virtualbox.org/manual/ch01.html#intro-installing