CreateDeviceAlias creates a device alias for the supplied path.

DeviceAlias returns the aliased form of the supplied path.

FilesystemIsEmpty checks the mountpoint of a filesystem to see whether the filesystem is empty.

FindFirstMissingPathComponent returns the path up to the first component which was found to be missing, or the whole path if it already exists.

MkdirForFile helper creates the directory components of path.

PathExists checks if the path exists for a given config.

Helper function to concatenate the key files.

Util encapsulates logging and destdir indirection for the util methods.