I have some questions about qcow2 If I have 2 img A & B, and A is backing file of B. Is the format(such as L1, L2, ref block...etc) different from A and B?
> No real tutorial other than reading the code and the file format > specification (it's open source, after all). See: > block/qcow2* > docs/interop/qcow2.txt > > Other potential resources to study: > > https://github.com/jnsnow/qcheck.git > > implements a rudimentary qcow2 image checker, although it still does not > handle incremental snapshots. Then again, if you want to learn the qcow2 > image format, enhancing that tool would be a great asset in your quest. > >
