Start NBD server
=== Target image info ===
image: nbd+unix:///exp?socket=SOCK_DIR/PID-nbd-sock
file format: raw
virtual size: 448 KiB (458752 bytes)
disk size: unavailable
Child node '/file':
    filename: nbd+unix:///exp?socket=SOCK_DIR/PID-nbd-sock
    protocol type: nbd
    file length: 448 KiB (458752 bytes)
    disk size: unavailable

=== Converted image info ===
image: TEST_IMG
file format: IMGFMT
virtual size: 1 GiB (1073741824 bytes)
cluster_size: 65536
Format specific information:
    compat: 1.1
    compression type: COMPRESSION_TYPE
    lazy refcounts: false
    refcount bits: 16
    corrupt: false
    extended l2: false

=== Converted image check ===
No errors were found on the image.
1/16384 = 0.01% allocated, 100.00% fragmented, 100.00% compressed clusters
Image end offset: 393216

=== Comparing to source disk ===
Images are identical.

Kill NBD server
=== OVA file contents ===
[{"name": "vm.ovf", "offset": 512, "size": 6}, {"name": "disk", "offset": 1536, "size": 393216}]