Unable to start client

Discussions related to using VirtualBox on Mac OS X hosts.
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powersteer
Posts: 3
Joined: 11. Mar 2021, 02:42

Unable to start client

Post by powersteer »

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

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

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
scottgus1
Site Moderator
Posts: 20965
Joined: 30. Dec 2009, 20:14
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: Windows, Linux

Re: Unable to start client

Post by scottgus1 »

Try MultiOS's suggestion here: viewtopic.php?f=22&p=481332#p481332
powersteer
Posts: 3
Joined: 11. Mar 2021, 02:42

Re: Unable to start client

Post by powersteer »

Thank you for your suggestion, tried more than 20 times but it didn't work :(
granada29
Volunteer
Posts: 687
Joined: 3. Mar 2015, 07:27
Primary OS: Mac OS X other
VBox Version: OSE other
Guest OSses: Linux, macOS, Windows

Re: Unable to start client

Post by granada29 »

@powersteer

Something you might try:

1. Uninstall VirtualBox (using the VirtualBox uninstaller script)
2. Reboot
3. In the Terminal

Code: Select all

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.
kaowiec
Posts: 2
Joined: 25. Mar 2021, 12:19

Re: Unable to start client

Post by kaowiec »

granada29 wrote:@powersteer

Something you might try:

1. Uninstall VirtualBox (using the VirtualBox uninstaller script)
2. Reboot
3. In the Terminal

Code: Select all

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?
sudokillall
Posts: 36
Joined: 13. Feb 2021, 07:01

Re: Unable to start client

Post by sudokillall »

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?
sudokillall
Posts: 36
Joined: 13. Feb 2021, 07:01

Re: Unable to start client

Post by sudokillall »

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
sudokillall
Posts: 36
Joined: 13. Feb 2021, 07:01

Re: Unable to start client

Post by sudokillall »

Tried both ways now. Still failing to install so assume this isn't the cause of my problem. Will try another thread for suggestions
kaowiec
Posts: 2
Joined: 25. Mar 2021, 12:19

Re: Unable to start client

Post by kaowiec »

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

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
isitme
Posts: 2
Joined: 22. Apr 2021, 14:48

Re: Unable to start client

Post by isitme »

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?
powersteer
Posts: 3
Joined: 11. Mar 2021, 02:42

Re: Unable to start client

Post by powersteer »

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

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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Fantomduck21
Posts: 1
Joined: 5. Nov 2021, 10:22

Re: Unable to start client

Post by Fantomduck21 »

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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