# currently only qcow2 allows for consistency checks using qemu-img
_supported_fmt qcow2
_supported_proto generic
-_supported_os Linux
# refcount_bits must be at least 4 so we can create ten internal snapshots
# (1 bit supports none, 2 bits support two, 4 bits support 14)
_unsupported_imgopts 'refcount_bits=\(1\|2\)[^0-9]'