Why does Linux need to mount the hard disk?

The reasons for mounting a hard disk under Linux are: 1. Add additional hard disk capacity to the system to expand storage space; 2. Split and organize data between different file systems to improve data management flexibility and efficiency; 3. Mounting a specific hard drive to a key directory can help separate system files and user data, reducing accidental operations on system files; 4. By mounting the hard drive, you can select an appropriate file system for the hard drive. and perform format conversion.

The operating system of this tutorial: Linux5.18.14 system, Dell G3 computer.

In Linux, mounting a hard disk is the process of connecting the hard disk's file system to a directory in the file system hierarchy. The purpose of mounting the hard disk is to make the data in the hard disk accessible and operable in the specified directory.

Here are some reasons to mount a hard drive:

1. Expand storage space: By mounting a hard drive, you can add additional hard drive capacity to the system , thereby expanding storage space. This is useful for storing large amounts of data or running applications that require large amounts of disk space.

2. Data separation: Sometimes, you may want to store different types of data on different hard drives. By mounting a hard drive, you can split and organize data between different file systems, improving the flexibility and efficiency of data management.

3. System security and reliability: Mounting a specific hard drive to a key directory (such as /home or /var) can help separate system files and user data and reduce accidental access to system files. operate. In addition, mounting a hard drive can also provide backup and redundancy functions, making data more secure and reliable.

4. Hard drive format conversion: When you connect a new hard drive, it usually needs to be formatted with a specific file system for use on a Linux system. By mounting the hard drive, you can select an appropriate file system for the hard drive and perform format conversion.

It should be noted that mounting a hard disk requires performing a series of operations in the Linux system, such as partitioning, formatting, and device file association. These operations need to be performed as root or a user with appropriate permissions. Also, after mounting the hard drive, you need to automatically mount it when the system starts so that it is still available after each restart.

In short, by mounting a hard disk, you can expand storage space, separate data, improve security and reliability, and convert hard disk formats on a Linux system. This allows data on the hard drive to be easily accessed and managed within the file system hierarchy.

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