Convert running Win8 sata to virtio

[bruno.oliveira]

Hello there,
We got a production Win8 VM with the hard disk mistakenly created as sata bus, so now I'd like to convert it to virtio bus.


If I simply stop the VM and change the bus to virtio, windows won't boot. In this case one ends up in the windows' recovery/update screen which doesn't seem to have any tool to install/set the drivers.


Anyone faced it before? How can I set/install the driver in this scenario?


Thanks in advance.
Regards, Bruno.

 

[dswartz]

Add a small dummy disk to the VM as virtio. Boot windows. Hopefully it installs the virtio block driver. Shutdown windows. Delete fake disk. Change real disk from sata to virtio. Reboot.

 

[mir]

Or simply install the virtio drivers when the VM is booted on the SATA drive. After install you simply stop the VM and change SATA to VirtIO.

 

[bruno.oliveira]

Worked like a charm.
Thank you for your time!