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Loopback Attach

The Loopback Attach allows a file that lives on either the root filesystem (/) or an existing mount to be attached as a lopback block device. This allows, e.g. a SquashFS image that exists on another mount to be attached and mounted.

The parameter, base: [ "mount", "root" ] controls if the file is to be found in the root filesystem or in a mount.

Example of a Loopback attachment specification (in the root filesystem):

{
    "kind": "loopback",
    "loopback": {
    "path": "/rhel8.1-x86_64.sqsh",
    "base": "root",
}

To see an example use if loopback with an NFS mount, see ../examples/nfs-loopback-scheme