2N/AEach collection of installed package instances is some kind of image.
2N/AWe envision three kinds:
2N/A An entire image contains (and can contain) all appropriate
2N/A packages from a repository. It has a machine type and release.
2N/A A partial image contains (and can contain) all appropriate
2N/A packages from a repository. An partial image is tied to an
2N/A entire image and has an identified list of non-writeable
2N/A directory paths. It inherits its machine type and release.
2N/A A user image consists entirely of relocatable packages. It is
2N/A tied to an entire image for dependency satisfaction of
58N/A non-relocatable packages. It inherits its machine type and