tluck大神提供的升级思路：
if you are on a MacbookPro8,1 then Mojave is not supported. if you switch to the config.mojave.plist, it changes your Model/Product to MBP11,1 which is a supported platform. So install the latest ESP zip and move config.mojave.plist to config.plist (and merge in any items you may need - ROM/MLB an LCD properties etc). Remember to update your ESP before you do the install. And preserve (copy) the /S/L/E HD3000 and SNB kexts to a good location. and you should be able download and go.
