Qemu-img convert (0.00/100%)

Hello guys, I want to migrate from Hyper-v to KVM, but I’m getting some troubles when I try to convert a vhdx disk to qcow2.
I’m using the follow command: qemu-img convert -f vhdx -O qcow2 windows.vhdx image.qcow2 -p
But the progress bar doesn’t change: (0.00/100%).

Somebody has gotten this issue before?