Virtualbox For Mac Big Sur

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After I upgraded my Mac OS from version 10.15.7 to Big Sur 11.0.1, the Virtualbox VM crashed all the time. Erro message is below:

#Big Sur #Catalina #OS X #macOS #MacThis Video is show on How to Download & Install Virtual Box on Mac!! Here's how to run macOS Big Sur on VirtualBox: Install Catalina on VirtualBox Download Big Sur InstallAssistant.pkg (9GB) either inside the virtual machine or on the host on a disk image that will be mounted on the virtual machine. Windows can create and mount VHD disk images through Disk Management.

Kernel driver not installed (rc=-1908)

Make sure the kernel module has been loaded successfully.

Virtualbox For Mac Big Sur Mac

where: suplibOsInit what: 3 VERR_VM_DRIVER_NOT_INSTALLED (-1908) - The support driver is not installed. On linux, open returned ENOENT.

I did a few searches on the web, it seems the problem occurred when the VirtualBox kernel driver is not loaded or permission is not right. In my case, it is related to the security setting in Mac OS. I need to provide permission to system modules from Oracle.

Virtualbox

Note: This message only popup after you have new installation of Virtualbox.

I tried to reinstall Virtualbox a few times in my Mac to allow this, but did not work for me. Then I found another procedure with CMD line from web.

Virtualbox Big Sur Enable

Source: https://www.virtualbox.org/ticket/19795

Apparently, there was a long discussion since Big Sur beta was released. Fortunately, there was a solution tested and posted by NickyD at the bottom of the thread.

Tested by NickyD: VirtualBox 6.1.16 r140961 running on BigSur macOS 11.0.1 (20B29) / Darwin 20.1.0

Tested by me: Virtualbox Offical release 6.1.16 ( r140961 (Qt5.6.3)) + BigSur MacOS11.0.1 (first public release of Big Sur), It worked well for me, too.

Step 1: sudo kextload -b org.virtualbox.kext.VBoxDrv

Step 2: Go into System Preferences->Security & Privacy

Step 3: Unlock the security center

Step 4: Approve the software by Oracle

Step 5:

sudo kextload -b org.virtualbox.kext.VBoxNetFlt
sudo kextload -b org.virtualbox.kext.VBoxNetAdp
sudo kextload -b org.virtualbox.kext.VBoxUSB

Step 6: Reboot

Info about Virtualbox kernel modules: https://www.virtualbox.org/manual/UserManual.html#externalkernelmodules

  • VBoxDrv: VirtualBox Linux kernel driver
  • VBoxNetFlt and VBoxNetAdp: network driver
  • VBoxUSB: USB support

I was not familiar with kextload, so I summarize some info collected from https://osxdaily.com/2015/06/24/load-unload-kernel-extensions-mac-os-x/

kext is Kernel extensions for short, which are modules of code that are loaded directly into the kernel space of Mac OS X, able to run at a low-level to perform a variety of tasks. Most kexts are part of the core Mac OS X system software, typically hardware device drivers, but some third party apps will install a kext as well.

kextload: cmd to load a kernel extension into Mac OS X.

Install Big Sur On Virtualbox

sudo kextload /path/to/kext.kext

kextload -b: use the bundle identifier (which are frequently the targets of defaults commands)

sudo kextload -b com.apple.driver.ExampleBundle

Either way, hit return and with the entry of the administrator password the kernel extension will be loaded into Mac OS X.

kextstat: list the kernels loaded

$ kextstat |grep com.apple.driver.ExampleBundle
125 0 0xdddddd7f23351040 0x5000 0x5000 com.apple.driver.ExampleBundle (1) 12 8 7 5 4 2 1

kextunload: unload a kernal extension.

sudo kextunload -b com.apple.driver.ExampleBundle

Or by pointing directly to the kernel extensions path:

sudo kextunload /System/Library/Extensions/ThirdPartyMystery.kext