We have a DXA 1.8 implementation where we pared down the DXA installation, removing almost entirely the Core module, leaving only the Framework Folder, and a couple of Schemas/configuration Components from Core which are necessary for DXA to work.
We now want to upgrade to DXA 2.0, and I am guessing that if I run the installer, that it will 'install' the Core module again, with all the Schemas and Templates we painstakingly have removed. Is this correct, and if so can we use Content Porter to just upgrade the Framework Folder? Are there other steps that need to be done manually, like installing the DXA 2.0 Customer Resolver?