Use --update for createrepo

Russell Melick · Russell Melick · commit bca790669be8 · 2016-02-26T15:50:39.000+01:00
diff --git a/install-new-mirrors.sh b/install-new-mirrors.sh
@@ -23,5 +23,5 @@ reposync -r HDP-${HDP_VERSION}
 reposync -r HDP-UTILS-${HDP_UTILS_VERSION}
 
 cd ${MIRROR_DIR}
-createrepo .
+createrepo --update .
 
