[Installer] Fix 'clean install' from image
|Reported by:||nielx||Owned by:||nielx|
As noted in #15808, the Installer promises to offer a 'clean' install when installing to an existing partition, but it does not actually work.
The Installer promises to clean up the system folder (except for settings), but it does not actually do that. The consequence is that the updated partition does not activate the new packages. This eventually leads to failures when an update is done using pkgman, because the package kit will not apply downloaded packages that already exist on disk.
This situation needs to be resolved: there is value in doing a clean install using the installer, but this needs to be implemented.