diff --git a/Makefile b/Makefile
index 003890c150..68f3d45019 100644
--- a/Makefile
+++ b/Makefile
@@ -66,8 +66,8 @@ phpdoc:
 doxygen:
 	doxygen doc/doxygen/doxygen.conf
 build4linux:	
-	#unzip ZenTaoPMS.$(VERSION).zip
-	#rm -fr ZenTaoPMS.$(VERSION).zip
+	unzip ZenTaoPMS.$(VERSION).zip
+	rm -fr ZenTaoPMS.$(VERSION).zip
 	# build xmapp.
 	cd ./build/linux/ && ./buildxmapp.sh $(xampp)
 	mv ./build/linux/lampp ./
diff --git a/db/update4.0.beta2.sql b/db/update4.0.beta2.sql
index 1023f585e8..4f57dd1a35 100644
--- a/db/update4.0.beta2.sql
+++ b/db/update4.0.beta2.sql
@@ -1,5 +1,4 @@
 ALTER TABLE  `zt_build` CHANGE  `desc`  `desc` TEXT CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL;
-ALTER TABLE  `zt_group` ADD  `role` CHAR( 10 ) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL;
 ALTER TABLE  `zt_taskEstimate` CHANGE  `estimater`  `account` CHAR( 30 ) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT  '';
 ALTER TABLE  `zt_taskEstimate` ADD  `consumed` TINYINT( 3 ) UNSIGNED NOT NULL AFTER  `estimate`;
 UPDATE `zt_group` SET `role` = 'guest' WHERE `name` = 'guest';