Linux - An error has occurred while trying to create a virtualbox host-only network interface

This error can have several different causes. Here are the main known cause and possible solutions:

You are trying to run Genymotion Desktop in a virtual machine, a server or a Cloud instance (AWS, GCP, Azure, ...)

Genymotion Desktop has been designed to run in a physical environment, not in a virtual machine or a server. For this reason, Genymotion Desktop will not work if run in Linux VMs, Linux servers and Linux Cloud instances.

For more details, please refer to the following articles:

• Can Genymotion Desktop run in a virtual machine?
• Can Genymotion Desktop run on a server?
• Can Genymotion Desktop run in a Cloud service (AWS, Google Cloud, MS Azure, Alibaba, etc.)?

You are using a VPN and/or a restrictive firewall

VPN clients and restrictive firewalls may interfere with VirtualBox and Genymotion Desktop.

For more details, please refer to the following articles:

• Genymotion Desktop and VPN
• Genymotion Desktop and firewalls

VirtualBox has been freshly installed

If you have just installed VirtualBox, it is recommended to reboot your PC.

vboxdrv kernel module is not installed

1. Make sure that the dkms package is installed and that it compiles VirtualBox kernel modules each time a new kernel update is available. To do so, run:

   modinfo vboxdrv

   If the vboxdrv kernel module is loaded, it should return (version numbers may differ):

   filename: /lib/modules/5.11.0-40-generic/updates/dkms/vboxdrv.ko
   version: 6.1.26_Ubuntu r145957 (0x00300000)
   license: GPL
   description: Oracle VM VirtualBox Support Driver
   author: Oracle Corporation

   If not, try to reload vboxdrv kernel module manually:

   sudo modprobe vboxdrv

   If this doesn’t work, rebuild VirtualBox kernel modules:
   
   Ubuntu/Debian

   sudo apt-get --reinstall install virtualbox-dkms

   Fedora

   sudo /sbin/vboxconfig

2. Reboot your system

For more information, please refer to VirtualBox documentation. If this doesn't help, try to remove VirtualBox altogether and re-install it.

UEFI Secure Boot

If you have a Linux system with UEFI secure boot enabled, during the VirtualBox installation, the system will ask you to set a password (If not already set during the OS installation or MOK is not enrolled after the OS installation) and that can be used at the time of enrolling Machine-Owner key (MOK) in your system’s firmware.

Click OK on configuring secure boot wizard.

Set a password for secure boot:

Enter the password again to confirm the password:

Reboot your system:

sudo reboot

Upon system reboot, you will need to perform MOK management.

Choose Enroll MOK » Continue » Yes » Enter Password (you have set earlier) » Reboot.

Wait for the system to come up after a reboot and then start VirtualBox.

No host-only interface is accessible

This happens in some rare cases, for example when VirtualBox has been updated from a version 6.0.X or 5.X.X.

To fix this:

1. Open VirtualBox
2. Go to File > Host Network Manager...
3. Remove all the host-only interface (vboxnet0, vboxnet1, etc.):
   
4. Close VirtualBox
5. Launch Genymotion Desktop