This issue happens with the following combination.
1) python3-curtin 20.1-2-g42a9667f-0ubuntu1 installed and 2) Virtio disk bus and 3) Qcow2 image type
This issue happens with the following combination.
1) python3-curtin 20.1-2- g42a9667f- 0ubuntu1 installed
and
2) Virtio disk bus
and
3) Qcow2 image type