Some kexts need to be in that location tm work properly. Extensions usually go in /Library/extensionsand if they are there then that has the advantage that the mac hoots quicker because they are in the cache, but has the disadvantage that you can't easily get rid of them if it breaks. Kexts are found in a standard location on the mac os hard drive. Kext stands for 'kernel extension' and is similar to a Windows driver/Dll in the way it works. That's because I found that you wind up with all sorts of files all over the place that you don't want, and it's hard to work out what it's doing. I did not use a certain bad, cartoonish post-install piece of software with a name similar to murderbeast.
I tried to install Sierra directly using a bootable USB and clover. But it will hopefully give hope to anyone trying to do it that it's possible.ฤก. There might be a better way - because it was a learning process. Please bear in mind that this guide was the order in which I did it. Lots of rumours, guesses, smoke and mirrors. I know that I could have personally used this sort of simple information when I started this install.I'm an IT professional and this is my first mackintosh install and it's been an interesting experience - although not helped by the real lack of coherent and organised information on the web. I have tried to write it in simple language. I was unable to find any information on the web from anyone who did it, so I thought I would write it up as a useful guide. I recently managed to install OS-X 10.12 Sierra on a Dell T5610.