The steps for mounting a hard disk may vary depending on the operating system.
Windows System
1. Make sure the hard disk is connected to the computer and the computer is turned on. Usually, it will be automatically recognized and can be used directly after the basic drivers are installed. You can check it through "This PC".
2. If the hard disk is not recognized, it may be a driver issue. You can go through the Device Manager, find the "Disk Drives" option, right-click on the unrecognized hard disk device, and choose "Update Driver" to manually install the driver.
Linux System (Taking the common Ubuntu as an example)
1. First, use the "fdisk -l" command to check the name of the hard disk device (such as "/dev/sdb") and its partition situation.
2. Create a mount point, for example, "mkdir /mnt/mydisk" (where "mydisk" is a custom mount point name).
3. Mount the hard disk partition. The format is "mount /dev/sdb1 /mnt/mydisk" (assuming the hard disk partition is "/dev/sdb1").
4. If you want it to be automatically mounted at startup, you can edit the "/etc/fstab" file and add a line like "/dev/sdb1 /mnt/mydisk ext4 defaults 0 0" (modify the file system type according to the actual situation).