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From Andrija Panic <>
Subject Re: Importing Hyper-V to Cloudstack 4.11.0
Date Fri, 06 Jul 2018 12:45:23 GMT
Hi Adam,

havent done that myslef (but helped some customers) - if you are running OS
TYpe :"Windows XXX" - anything concrete version - this means no VirtIO
drives are needed, since all IDE, so no drivers needed)
 If using "Windows PV" this means you need to have installed VirtIO drivers
inside the OS (I suggest, on HyperV VM, adding new hardware via device
manager and loading correct VirtIO drivers for SCSI controller, or also for
the network...up to you) - and only then exporting VHDX to qcow2.

Btw, I don't know if VHDX can be imported into ACS directly ? - perhaps it
needs previous conversion to QCOW2 format, and then upload qcow2 natively
(again, not sure,  so I might be wrong here).

Also please note that there is something related to Hardware Abstraction
Layer in Windows (if Windows at all ?), when some of the changes (even
installing VirtIO in some cases on existing KVM VM) will bring server down
unable to boot - bcdedit /detecthal - google for this one - i.e. force OS
to detect HAL again, for proper boot/fix.

Hope that helps


On Fri, 6 Jul 2018 at 12:39, Adam Witwicki <> wrote:

> Hello,
> I wonder if anyone can help, I am having issues importing a converted
> Hyper-V (VHDX) to KVM (qcow2).
> After importing the template and starting the instance, the instance will
> fail to find the boot device.
> This worked in 4.9
> Thanks
> Adam Witwicki
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Andrija Panić

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