World set (Portage)
From Gentoo Wiki
Not to be confused with World file (Portage).
Later, when a world update is requested (through emerge -uDN @world or similar command), Portage will use the world set as the base for its update calculations.
- System set (Portage) — contains the software packages required for a standard Gentoo Linux installation to run properly.
- Selected set (Portage) — contains the packages the admin has explicitly installed
- Knowledge Base: Remove orphaned packages - The process of finding orphaned dependencies explained.