I dowloaded the Oracle VM Manager as instructed, and then the Appliance via a torrent.
When I try to run the Appliance, I get this error message:
Nonexistent host networking interface, name 'vboxnet0' (VERR_INTERNAL_ERROR).
Result Code: E_FAIL (0x80004005) Component: ConsoleWrap Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}
A solution to this problem is presented in "Troubleshooting" section of "VirtualBox" CS50 manual page (VirtualBox Troubleshooting).
Let me cite the interesting part here:
Nonexistent host networking interface, name '' (VERR_INTERNAL_ERROR)
For some reason, VirtualBox doesn’t always come with a "host-only adapter" configured. (A "host-only adapter" lets you connect to the CS50 Appliance via HTTP, SSH, and the like.) To resolve this problem:
- Launch VirtualBox. (If VirtualBox is already running, shut down any virtual machines that are running, as by clicking the red circle in the top-left corner of each’s window.)
- Select Preferences… under VirtualBox’s VirtualBox menu in your display’s top-left corner.
- Click Network.
- If vboxnet0 does not already appear in the white box under Host-only Networks, click the
icon to the right of that box, and vboxnet0 should then appear in the box.
- Click OK.
- Single-click whichever virtual machine originally triggered the error (e.g., the CS50 Appliance), then click Settings.
- Click Network.
- Click each of Adapter 1, Adapter 2, Adapter 3, and Adapter 4. If any of them has both Enable Network Adapter checked and a value of Host-only Adapter for Attached to (as should the CS50 Appliance for Adapter 2), ensure that the adapter also has a value of vboxnet0 now for Name, selecting it yourself from the drop-down menu next to Name yourself if necessary.
- Click OK.
- Start whichever virtual machine originally triggered the problem (e.g., the CS50 Appliance); it should now be gone.
