In this part we're going to look at what a virtual file system is, why it's useful and an example implementation.

• Overview goes over some high level theory and looks at why a VFS is useful.
• Virtual File System goes into detail on the inner workings of a typical VFS and it's main components. We also look at some example code.
• Tar FS adds a readonly in-memory filesystem, which is based on the contents of a tar file given by the bootloader. Useful for an init ramdisk.