genfstab:tldr:b8417

The genfstab command is a utility in Linux used to generate the file system table (fstab). The fstab file is a configuration file that contains information about file systems and their mount points on a Unix-like operating system. It defines how file systems are mounted and what options are used during the mounting process.

The specific command you mentioned, "genfstab -L ${path-to-mount_point}", is used to generate entries for file systems based on their labels (L) instead of specifying the device path directly.

Here's how it works:

• genfstab: This is the command itself, which invokes the utility.
• -L: This option tells genfstab to use the file system labels instead of device paths.
• ${path-to-mount_point}: This is the path of the directory where the file system will be mounted. You need to replace "${path-to-mount_point}" with the actual path to your mount point.

By using the -L option, genfstab looks for file systems with labels and automatically generates appropriate entries in the fstab file. This can be helpful when the device paths of file systems change, but their labels remain constant.