What does linux mount disk mean?

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Release: 2024-04-02 17:33:17
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What is a Linux mount disk?

In the Linux operating system, mounting is the process of connecting a storage device (such as a disk, partition, or file system) to the file system hierarchy so that it can be accessed like a local device.

The principle of mounting

Mounting is completed through a directory called a "mount point". When a storage device is mounted, its file system is added to the file system hierarchy and can be accessed through the mount point. For example, if you have a disk partition named /dev/sda1, you can mount it to the directory /mnt/data:

<code class="shell">mkdir /mnt/data
mount /dev/sda1 /mnt/data</code>
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Purpose of mounting

Mounted disks have many uses in Linux systems:

  • Access external storage devices: Allows access to external storage devices such as USB drives, SD cards, etc.
  • Create a RAID Array: Combine multiple physical disks into a logical device to improve performance or reliability.
  • Extend File System: Extend an existing file system by mounting another partition or file system.
  • Create a virtual file system: Use tools such as FUSE to create a virtual file system based on user space programs.

Mount options

When mounting, you can specify various options to control the behavior of the mount, for example:

  • File system type: Specify the file system type to be mounted, such as ext4 or FAT32.
  • Read-only: Mount the file system as read-only to prevent accidental writes.
  • Auto-mount: Set the file system to be automatically mounted when the system starts.
  • Dump data: Cache the contents of the file system in memory to improve access speed.

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