virtualbox.org

Hello all. I am having an issue with Debian, where it refuses to install because Debian complains that drivers cannot be loaded. See image below. Can somebody please explain what causes this issue, and how I can fix it?

Thank you.

Start the guest from full power off, not save-state. Run until you see the problem happen, then shut down the guest from within the guest OS if possible. If not possible, close the Virtualbox window for the guest with the Power Off option set.

Please right-click the guest in the main Virtualbox window's guest list, choose Show Log. Save the far left tab's log, zip the log file, and post the zip file, using the forum's Upload Attachment tab.

My log is attached, when I read the log, no errors are seen. I don't know if this is a common issue or what? Is it possible that Debian is not installing because I am running a couple releases old? I believe 6.1.4.

Your log contains these lines:

{timestamp} HM: HMR3Init: Attempting fall back to NEM: VT-x is not available
{timestamp} NEM: WHvCapabilityCodeHypervisorPresent is TRUE, so this might work...

You might notice in the guest window's Status Bar the green turtle: The choice of animal is appropriate: Your guest is running, just really slow. Or it might guru-meditate. This is because a service that uses Microsoft Hyper-V is running on your host PC. Normally Hyper-V blocks Virtualbox. But your PC is of the type and OS where Virtualbox can attempt to run the guest using the Hyper-V engine. This arrangement is still being developed and isn't 100% yet.

If VirtualBox is running without Hyper-V enabled, and nothing else is interfering with hardware virtualization (VT-x / AMD-V), then the usual virtualization icon () will be seen in the Status Bar.

To turn Hyper-V off completely, do this:

1. Shut down all programs. You will have to reboot your host.

2. Look into I have a 64bit host, but can't install 64bit guests, 2nd post, points 2 & 3 and ensure that none of these things are running.

3. Find the Command Prompt icon, right click it and choose Run As Administrator.

4. Enter this command:

bcdedit /set hypervisorlaunchtype off

5. Enter this command:

shutdown -s -t 2

6. When the computer turns off, unplug it for 20 seconds. Then plug it in again and boot up Windows 10.

Your Virtualbox should be running now. If the green turtle still appears and the tell-tale lines are in the log, try all the steps again. If you don't get the standard virtualization icon, post back exactly what you did and we'll try to help some more.

For further info, see https://www.tenforums.com/tutorials/139 ... puter.html

Okay, I have followed your steps. And I am still getting these errors. Could it be that I am installing off of a usb flash drive?

Could be. Virtualbox does not support installing directly from a bootable USB device. Some use raw disk access to get around this limitation, but there's no telling how well it might work.

Try using an ISO file stored on your main host PC drive.

Also, if you still see those tell-tale lines in your log, then you haven't got rid of Hyper-V yet. There is a possibility (that I have seen and only have forum-based anecdotal evidence for so far) that Hyper-V might interfere in reading hashes in a guest OS. If you can fully get rid of Hyper-V, your log will say something along the lines of:

HM: HMR3Init: VT-x w/ nested paging hw support

USB was it. I just booted from the iso. and it worked. Thank you

Great! Glad you're running!