How to add a new hard disk under Linux,partitionand Mount

Let's first talk about disk mounting on linux systems. After reading a lot of official help documents, it is troublesome not to mention technical operation errors, but it is quite complicated and difficult to understand for novices. After my own slow exploration, I sorted out several simple and practical passwords to mount the disk. 1. Disk mount (password input in a single line, students who do not have additional data disks