def METHOD_NAME(self):
    """
    Container filesystem check setup
    The root filesystem of a container could be an overlay
    or a mapped device. In any case it should not be checked
    for consistency as this is should be done by the container
    infrastructure
    """
    boot_setup = self.root_dir + '/etc/sysconfig/boot'
    if os.path.exists(boot_setup):
        self._update_config(
            boot_setup,
            {
                'ROOTFS_BLKDEV': 'ROOTFS_BLKDEV="/dev/null"'
            }
        )