Disk issue in Ubuntu server?

Question

Hard disks

Hello, there is such a question: there is ubuntu srever on the computer, 2 hard drives are mounted. I want to put Windows on one hard drive as a second system. How to find out which of the disks is the system one, and how to find out the physical location of the files?

Answer 1

Obviously, you need to see what is mounted where.

Answer 2

df -h
mount -l