My goal is to use an AuFS read only branch as another read only branch: I've got a directory dir0, then I make : mount -t aufs -o br=dir2=rw:dir0=ro none dir1 This gives me - dir0 - dir1 #read ...
I configured aufs as a Root File System On Usb Flash Drive by this article. So the first brunch is real root FS and it is read-only. The second brunch FS is in memory and it is read-write capable. ...