nīetter doing what I have listed above instead of wasting time and putting faith in methods that may or may not work on your particular configuration. You also have the option of extracting VBoxGuestAdditions.iso in Windows (or whatever host OS you're using) and then SCP'ing (or WinSCP'ing) it over to the Ubuntu guest, and then just running: sudo. VirtualBox is one tiny, powerful dude, and it is capable of installing macOS onto your Windows 10 computer as an app. If you change into the directory /media/GuestAdditionsISO you should see n and it should be executable: Sudo mount -o loop path/to/VBoxGuestAdditions.iso /media/GuestAdditionsISOĪt this point you'll probably get a message that the ISO has been mounted as READ-ONLY. In the terminal for the guest mount the ISO using the following: Locate VBoxGuestAdditions.iso on your host (in my case, C:\Program Files\Oracle\VirtualBox\VBoxGuestAdditions.iso).Ĭopy VBoxGuestAdditions.iso to your guest (in my case, I used WinSCP). Looked some time back, but the only answer I could find is to download (install) the upgrade to High Sierra, and dig around for the. In the end, I just copied over the VBoxGuestAdditions.iso to the guest (using WinSCP), mounted it, and then ran n from the guest. This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system on a laptop or desktop PC from. I struggled with this for about 2 hours on a Windows 7 host running Ubuntu 13.10 Server guest.