genfstab:tldr:4ef6f

The command genfstab -U ${path-to-mount_point} generates a file system table (fstab) using the UUID (Universally Unique Identifier) of the devices mounted at the specified mount point.

Here's how each component of the command works:

• genfstab is a utility command used to generate an fstab file. Fstab is a configuration file in Linux and Unix-like systems that lists all available disk partitions and other file systems, along with information on how to mount them.

• -U is an option for the genfstab command. It specifies that the UUID of the devices should be used instead of device names (like /dev/sda1) in the generated fstab file. UUIDs are unique identifiers assigned to each disk partition and provide a more reliable way of identifying devices compared to device names which can change.

• ${path-to-mount_point} is a placeholder that needs to be replaced with the actual path to the mount point where the devices are mounted. For example, if you want to generate an fstab file for the devices mounted at /mnt/usb and /mnt/data, you would replace ${path-to-mount_point} with /mnt/usb /mnt/data in the command.

When the command is executed, it will analyze the devices mounted at the specified mount point, retrieve their UUIDs, and generate an fstab file that includes the necessary configuration entries for mounting those devices automatically during system boot.