Hi uselesshippy,
uselesshippy wrote…I have a bit of a weird problem, I have a 500Gb SSD Hard Drive which I planned to put my music on and connect to the Pi3 that is running Rune, but for some reason it fails to see the drive, doesn't mount it or anything…
You seem to have tried most of solutions. The only thing that I can think of is that the RuneAudio version you are using is quite old and the a 500Gb SSD may not be supported. Upgrading the USB, filesystem and mount software is tricky, I would not advise trying it. You could try upgrading the package linux-firmware, this is reasonably safe and it may just have what you need. Log in via SSH and run this:
pacman -Sy linux-firmware
Moving to RuneAudio 0.5b would probably be a better route to solve it.
janui