DMU_POOL_CONFIG
rc = zap_lookup(spa, &dir, DMU_POOL_CONFIG,
printf("ZFS: can not read MOS %s\n", DMU_POOL_CONFIG);
if (spa_dir_prop(spa, DMU_POOL_CONFIG, &spa->spa_config_object, B_TRUE)
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG,