The whole point in it is that it has multiple layers - and the overhead of that is what some people don't like. e.g. every squashfile is in a separate layer.Moose on the loose wrote:Will AUFS allow you to have more than one layered file system?
I think you are trying to ask if more than one layer can be writable, and no, I think the way a layered filesystem works is that you can only write into the top layer.
You can mount something (e.g. a partition or another save file) and write into it. You could keep your home directory outside of the save file this way if you want. It is traditional to keep various parts of the Unix / Linux filesystem on different partitions.What I am thinking is making a mount point and mounting a second layered file system there. This way, we could get the effect of being able to write into lower layers. The "lower layer" really would be the top layer of the main file system. The "root" could be the mount point for the second system.
I'm a little unclear what you are trying to achieve though...