TerraMaster Forum

Hi there! F5-221 here with TOS 7.0.403.

I try to move from virtualbox to VM as virtualbox won't be supported anymore as I understand.
Import from OVA works but starting the VM fails with this log message:

Warning,2026-02-08 23:08:05,vm,username,"Virtual machine(name) failed to start (Error:virError(Code=67, Domain=10, Message='unsupported configuration: Emulator '/usr/local/sbin/qemu-system-x86_64' does not support virt type 'kvm''))"

I understand that this error have to do with disabled hardware support for virtualisation. Is there anything I can do to fix this?

Please enter BIOS to check if VT-x is enabled。
(Connect the USB keyboard and HDMI monitor. After pressing the power button of the F5-221, frequently press ESC.)

I checked BIOS settings. I found two that may deal with virtualisation: Intel virtualization technology (that seems to be VT-x) and VT-d, both were are are enabled, not working. I guess the fact that virtuabox works perfectly means the virtualisation is turned on.

usersky wrote: ↑20 Feb 2026, 20:16

KVM is a system-level resource that can only be used by one application at a time.
If you have both VirtualBox and VMs installed, when one (e.g., VirtualBox) starts and occupies the KVM module, the other (e.g., VMs) will report an error when trying to start a virtual machine.
You can try uninstalling VirtualBox first. If it still fails, you can try restarting or go to the Terminal on the TOS desktop and execute the following commands:
After running the command , if there is no output, it means the kernel has not enabled KVM.

Then try loading it with the following command:

I can confirm disabling virtualbox let me boot in VM app. All my virtuabox fail to finish the boot process because of some other reasons but at least they start/try to boot. Thanks for the help with this one.

usersky wrote: ↑25 Feb 2026, 15:47

If the imported virtual machine displays a black screen or fails to load properly when connecting via noVNC, please try modifying the firmware options.
https://toshelp.terra-master.com/faq/vm ... Box-to-VMs

The VM is a wordpress Turnkey appliance that worked well in virtuabox. Tried various bios settings, nothing changes, it always hangs at this stage while booting. I am not a linux guy so a bit stucked, no ideea what to do to make it work, if it's a setting, a bug or what:

Regarding the issue you mentioned most recently, we are currently unable to speculate on the specific cause. We recommend that you visit the TerraMaster official website and schedule a remote inspection with an engineer via the Live Chat window.
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