On Tue, 18 Nov 2025 at 11:50, Franco Martelli <[email protected]> wrote:
>
> VirtualBox kernel driver not accessible, permission problem. Re-install
> VirtualBox. If you are building it yourself, you should make sure it
> installed correctly and that the setuid bit is set on the executables
> calling VMR3Create. (VERR_VM_DRIVER_NOT_ACCESSIBLE).
>
> Result Code:NS_ERROR_FAILURE (0x80004005)
> Result Detail:-1909 (0xfffff88b)
> Component:ConsoleWrap
> Interface:IConsole {6ac83d89-6ee7-4e33-8ae6-b257b2e81be8}
> ---
>
My favorite AI tool replied this (like I said, I only run vbox windows host
and guest).
--
This error means your user doesn't have permission to access the VirtualBox
kernel driver (/dev/vboxdrv). However, setting setuid on VBoxHeadless is
not the correct solution and creates security risks.
Correct Fix
1. Add your user to the vboxusers group:
bashsudo usermod -aG vboxusers $USER
2. Log out and log back in (or reboot) for the group membership to take
effect.
3. Verify the group membership:
bashgroups
# You should see 'vboxusers' in the list
4. Check /dev/vboxdrv permissions:
bashls -l /dev/vboxdrv
```
It should show something like:
```
crw-rw---- 1 root vboxusers 10, 54 Nov 19 12:00 /dev/vboxdrv
5. If the kernel modules aren't loaded:
bash# Check if modules are loaded
lsmod | grep vbox
# If not loaded, reload them:
sudo modprobe vboxdrv
sudo modprobe vboxnetflt
sudo modprobe vboxnetadp
# Or restart the VirtualBox service:
sudo systemctl restart vboxdrv
6. If vboxdrv service fails to start:
bash# Check the service status
sudo systemctl status vboxdrv
# You may need to rebuild kernel modules:
sudo /sbin/vboxconfig
---
Sorry I can't help more. But try the above, it's worth a shot.
FC
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