function::real_mount - Linux

Overview

function::real_mount is a function in Linux that allows you to verify if a filesystem mounted by the system is a live filesystem or a snapshot.

Syntax

bool real_mount(string mountpoint)

Parameters:

• mountpoint: The mount point of the filesystem to check.

Options/Flags

None

Examples

# Check if the filesystem mounted at /mnt is a live filesystem
if (real_mount("/mnt")) {
    # Do something with the live filesystem
} else {
    # Do something with the snapshot
}

Common Issues

None

Integration

function::real_mount can be used with other Linux commands to manage filesystems. For example, you can use it to:

• Create a snapshot of a filesystem:

fstype=btrfs && real_mount("/") && btrfs subvolume snapshot / /mnt/snapshot

• Roll back to a snapshot:

fstype=btrfs && real_mount("/") && btrfs subvolume delete / && btrfs subvolume snapshot /mnt/snapshot /

Related Commands

• mount – Mount filesystems.
• umount – Unmount filesystems.
• fstype – Display the type of a filesystem.
• btrfs – Manage Btrfs filesystems.