The method to automatically mount disk partitions in Linux is to edit the /etc/fstab file. Each line of the file contains six fields: 1) file system (it is recommended to use UUID instead of device name to ensure stability); 2) mount point (specify the mount directory such as /mnt/data); 3) type (file system type such as ext4); 4) options (mount options such as defaults); 5) dump (replacement generally fills in 0 for backup flags); 6) pass (fsck check order root partition is 1, others are 2 or 0). The operation steps include: 1) Use blkid to confirm the device information; 2) Create a mount directory such as sudo mkdir /mnt/data; 3) Open fstab with the editor and add new entries such as UUID=xxx /mnt/data ext4 defaults 0 2; 4) Execute the sudo mount -a test configuration and save it; 5) Use df -h to verify the mount status. Notes include avoiding syntax errors to avoid affecting startup, NTFS needs to install ntfs-3g and set permissions, and network file system needs to be configured with additional remote address and authentication. Follow the above steps to ensure that permanent mount is successful.

In Linux systems, if you want a disk partition or device to be automatically mounted every time you boot, you need to edit the /etc/fstab file. This is a standard and reliable way to achieve mount permanentization.

Understand the basic structure of /etc/fstab

/etc/fstab is a configuration file that is read when the system starts up to decide how to mount the storage device. Each line represents a mount entry, usually with six fields, separated by spaces or Tabs:

 <file system> <mount point> <type> <options> <dump> <pass>

• file system : device path (such as /dev/sdb1 ) or UUID
• mount point : The directory you want to mount (such as /mnt/data )
• type : file system type (such as ext4, ntfs, vfat, etc.)
• options : Mount options (commonly used defaults , you can also specify noatime , ro , rw , etc.)
• dump : Whether it is backed up by the dump command (usually fill in 0)
• pass : fsck check order when booting (root partition is 1, other partitions are 2, fill in 0 if not checked)

It is recommended to use a UUID instead of a device name (such as /dev/sdb1 ) because the device name may change and the UUID is more stable.

Edit /etc/fstab to add new mount point

1. First confirm the device information you want to mount:

    blkid

   This lists all block devices and their UUID and file system types.

2. Create the target mount directory (if not already):

    sudo mkdir /mnt/data

3. Open fstab (for example nano) using a text editor:

    sudo nano /etc/fstab

4. Add a line like this at the end of the file (modify according to your device):

    UUID=Your UUID /mnt/data ext4 defaults 0 2

5. Save and exit the editor.

6. Test whether the configuration is correct:

    sudo mount -a

   If there is no error, it means there is no problem with the grammar. You can run df -h to see if it has been successfully mounted.

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   Notes and FAQs

   • Syntax errors will cause the system to fail to start , so it is best to test it before saving.
   • To mount NTFS partitions, ntfs-3g is required to install. The mount option is usually defaults,uid=1000,gid=1000 to specify user permissions.
   • If you are not sure how to write the parameters, you can refer to the existing entry, or manually mount it once, and then copy the parameters to fstab.
   • For network file systems (such as NFS or CIFS), the writing method is slightly different, and remote address and authentication information are required.

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   Basically that's it. Although the operation is not complicated, details are easily overlooked, especially the selection of mount options and device identification. Just follow the steps step by step, permanent mount can be successfully achieved.

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