Unable to start client

Discussions related to using VirtualBox on Mac OS X hosts.

Unable to start client

Postby powersteer » 11. Mar 2021, 02:47

Hi everyone,

Recently I restored my Mac from TimeMachine and Virtualbox (VB) stopped working.

VB app was able to launch properly, when I tries to start my client VM, i faced the error codes below:

Code: Select all   Expand viewCollapse view
Kernel driver not installed (rc=-1908)

Make sure the kernel module has been loaded successfully.

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


Code: Select all   Expand viewCollapse view
Failed to open a session for the virtual machine XXX.

The virtual machine 'XXX' has terminated unexpectedly during startup with exit code 1 (0x1).

Result Code: NS_ERROR_FAILURE (0x80004005)
Component: MachineWrap
Interface: IMachine {85632c68-b5bb-4316-a900-5eb28d3413df}



I tried to uninstall / reinstall VB but each time the installation failed, I'm stuck now hoping to get help from you. Please share your experience how you manage to resolve this
powersteer
 
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Re: Unable to start client

Postby scottgus1 » 12. Mar 2021, 02:03

Try MultiOS's suggestion here: viewtopic.php?f=22&p=481332#p481332
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Re: Unable to start client

Postby powersteer » 21. Mar 2021, 15:54

Thank you for your suggestion, tried more than 20 times but it didn't work :(
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Re: Unable to start client

Postby granada29 » 22. Mar 2021, 06:44

@powersteer

Something you might try:

1. Uninstall VirtualBox (using the VirtualBox uninstaller script)
2. Reboot
3. In the Terminal
Code: Select all   Expand viewCollapse view
sudo kextcache --clear-staging

4. Reboot
5. Open System Preferences/Security & Privacy/General and unlock it
6. Install VirtualBox, checking System Preferences. If an Allow Oracle entry comes up, then OK it.
7. Reboot
8. Try to run a VM

I'm not sure that 7. Reboot is essential, but it can't hurt.
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Re: Unable to start client

Postby kaowiec » 25. Mar 2021, 12:24

granada29 wrote:@powersteer

Something you might try:

1. Uninstall VirtualBox (using the VirtualBox uninstaller script)
2. Reboot
3. In the Terminal
Code: Select all   Expand viewCollapse view
sudo kextcache --clear-staging

4. Reboot
5. Open System Preferences/Security & Privacy/General and unlock it
6. Install VirtualBox, checking System Preferences. If an Allow Oracle entry comes up, then OK it.
7. Reboot
8. Try to run a VM

I'm not sure that 7. Reboot is essential, but it can't hurt.



I have the same problem

I tried your solution ... it doesn't work for me.
What else can I do?
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Re: Unable to start client

Postby sudokillall » 25. Mar 2021, 15:21

I am running through the above process but not sure on point 3 - is this command to be entered in recovery mode terminal, or just normal after logging into admin user?
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Re: Unable to start client

Postby sudokillall » 25. Mar 2021, 15:29

I ran through it, running the kextcache command from user's terminal (not recovery terminal) and still can't install, "installation failed". I will try recovery terminal this time and try again
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Re: Unable to start client

Postby sudokillall » 25. Mar 2021, 15:41

Tried both ways now. Still failing to install so assume this isn't the cause of my problem. Will try another thread for suggestions
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Re: Unable to start client

Postby kaowiec » 26. Mar 2021, 20:54

kaowiec wrote:
granada29 wrote:@powersteer

Something you might try:

1. Uninstall VirtualBox (using the VirtualBox uninstaller script)
2. Reboot
3. In the Terminal
Code: Select all   Expand viewCollapse view
sudo kextcache --clear-staging

4. Reboot
5. Open System Preferences/Security & Privacy/General and unlock it
6. Install VirtualBox, checking System Preferences. If an Allow Oracle entry comes up, then OK it.
7. Reboot
8. Try to run a VM

I'm not sure that 7. Reboot is essential, but it can't hurt.


I have the same problem

I tried your solution ... it doesn't work for me.
What else can I do?


OK
it works :)
I have to add 5a point:

5a. Change - "App Store" only
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Re: Unable to start client

Postby isitme » 22. Apr 2021, 14:51

I have followed all steps incl. step 5a (asi would not get the prompt to allow oracle in system preferences without it), but still i cannot start my windows VM on mac host. The error remains the same no matter if i try to start an existing VM or start a new one from scratch. Any ideas?
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Re: Unable to start client

Postby powersteer » 19. May 2021, 04:46

Thank you for sharing, tried the steps you've shared religiously but unfortunately installation still failed at #6
Tried using step 5a from @kaowlec but it's still the same

I'm getting desperate :(

granada29 wrote:@powersteer

Something you might try:

1. Uninstall VirtualBox (using the VirtualBox uninstaller script)
2. Reboot
3. In the Terminal
Code: Select all   Expand viewCollapse view
sudo kextcache --clear-staging

4. Reboot
5. Open System Preferences/Security & Privacy/General and unlock it
6. Install VirtualBox, checking System Preferences. If an Allow Oracle entry comes up, then OK it.
7. Reboot
8. Try to run a VM

I'm not sure that 7. Reboot is essential, but it can't hurt.
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Re: Unable to start client

Postby Fantomduck21 » 5. Nov 2021, 10:28

For those who face the issue with the failed installation after the step 7, reboot your mac and run the installation again. It will finish without issues and you will start your machines.
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