Virtualbox doesn't run on MacOs 11 Big Sur

For discussions related to using VirtualBox on Mac OS X pre-releases

Virtualbox doesn't run on MacOs 11 Big Sur

Postby pipiche » 18. Nov 2020, 17:15

Not able to run Virtual Box 6.1.16 r140961 (Qt5.6.3)

Screenshot 2020-11-18 at 16.07.52.png
Screenshot 2020-11-18 at 16.07.52.png (105.7 KiB) Viewed 8654 times
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Re: Virtualbox doesn't run on MacOs 11 Big Sur

Postby mpack » 19. Nov 2020, 11:41

You have to reboot the host to get the kernel module to load.
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Re: Virtualbox doesn't run on MacOs 11 Big Sur

Postby WelshMatt983 » 23. Nov 2020, 10:33

mpack wrote:You have to reboot the host to get the kernel module to load.


Do you mean just reboot your mac? I have the same problem, tried rebooting mac and still had same problem, also tried allowing full disk access that didn't work either?
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Re: Virtualbox doesn't run on MacOs 11 Big Sur

Postby mpack » 23. Nov 2020, 10:36

I don't use Mac, I can't add to the tip I already passed on, above.
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Re: Virtualbox doesn't run on MacOs 11 Big Sur

Postby WelshMatt983 » 23. Nov 2020, 14:35

mpack wrote:I don't use Mac, I can't add to the tip I already passed on, above.


No problem, does anyone else know?
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Re: Virtualbox doesn't run on MacOs 11 Big Sur

Postby multiOS » 23. Nov 2020, 18:17

Have you tried the proposed 'solution' discussed in tis thread: viewtopic.php?f=39&t=98763&start=75

Sorry, can't offer any personal experience, as I have VirtualBox 6.1.16 working fine on 2 separate Big Sur installations and haven't experienced any problems with installation or running VMs.
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Re: Virtualbox doesn't run on MacOs 11 Big Sur

Postby ajmas » 26. Nov 2020, 03:49

Did you re-install Virtual Box following the system upgrade?

Having gone through this myself:

- Install Virtual Box
- In System Preferences -> Authorise application from Oracle America
- Restart
- Start Virtual Box & a VM
- Take heed of the change needed in system preferences for key strokes

You can see here too: https://stackoverflow.com/questions/539 ... -installed

From what I can tell this is due to extra security that has been added around kernel level drivers.
VB version: 6.x Primary OS: MacOS X 11.0.1 on Intel Mac
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