Initramfs used to host the Wakes installer is a debian one. In the init script we use the keyword boot to pass the install argument:

        boot=*)
                BOOT=${x#boot=}
                ;;

As $BOOT is sourced:

. /scripts/${BOOT}

we created the file scripts/install:

mountroot ()
{
  /wakes/install.sh
}

and we use the moutroot function to start the Wakes installer;

mountroot