I have an empty hard drive that I want to get Ubuntu on for a dual boot system. I don't know how to just get it on that free drive without touching my Windows drive since both are showing on that screen.
I tried the automagic dual boot install option but it only took half of my HDD (no sliders are actually offered on that step) and then botched the installation with a known "third party drivers checkbox" error. I had to fix my drive, stop a GRUB terminal from booting up first, and now there's a residual Ubuntu marker that does nothing somewhere when I choose to boot to UEFI or from removable drives on that blue Windows screen.
So now that it's mostly fixed and I can't trust the auto install settings, how do I do all of those manual /root /boot / things just on the drive that I want them on? It's visible on the list but I can't just click on it and press Install and I'm not an expert on what all of those /sda entries and other stuff are supposed to mean.