Hi. If a base qcow2 image snapshot chain like this:
base.qcow2: [A] -> [B] -> [C] [C] is the current image where guest read/write to,usually we create a new image base on the base.qcow2 like this qemu-img create -f qcow2 -o backing_file=/path/base.qcow2 new.qcow2 so the data of new.qcow2 is from [C] of base.qcow2, assuming the new.qcow2 has not been write to since created. What I want is that the data of new.qcow2 is from [B] of base.qcow2, like this: qemu-img create -f qcow2 -o backing_file=/path/base.qcow2,backing_snapshot=B new.qcow2 Can the qemu support it now? Thanks vt