Solution: Learn to load via a configuration
The convention for where these ConfigurationOf / baselineOf things are kept, and the way to check for their existence.
The Configuration Browser
The Pharo image holds a meta-repository of configurations, and a baseline is usually kept along with the packages. The Configuration Browser is a GUI to access it.
To check on a Pharo version, open the ConfigurationBrowser
Monticello is a browser for Packages in the image. (and contains tools for loading in new packages, if there are no inter-package dependencies), and for saving updated versions of the packages
Metacello is a browser for Projects. (A Project is a group of packages + dependencies)
The Configuration Browser knows about unloaded Packages held in Repositories - if they are listed in that Pharo image's meta repository.
So an image has a sort-of Pharo core of things which are actually in the image. And also a sort of Pharo fringe of things that the Image knows about, within its Meta Repository, which it knows how to load in a working configuration
For the naive user
Having two buttons on the Configuration Browser is confusing:
Either alone seem to have obvious visibility
Both together have low visibility, and suggest there is some learning I need to do to be able to use it