diff --git a/cmake/cmake.install b/cmake/cmake.install
index 07773d1015f91dd39d7ad83c2c681857bc4777b9..4e3d0b166aba447cf48fb664f429a885caece953 100644
--- a/cmake/cmake.install
+++ b/cmake/cmake.install
@@ -1,4 +1,8 @@
-IF (TD_LINUX)
+IF (EXISTS /var/lib/taos/dnode/dnodeCfg.json)
+  INSTALL(CODE "MESSAGE(\"The default data directory /var/lib/taos contains old data of tdengine 2.x, please clear it before installing!\")")
+ELSEIF (EXISTS C:/TDengine/data/dnode/dnodeCfg.json)
+  INSTALL(CODE "MESSAGE(\"The default data directory C:/TDengine/data contains old data of tdengine 2.x, please clear it before installing!\")")
+ELSEIF (TD_LINUX)
   SET(TD_MAKE_INSTALL_SH "${TD_SOURCE_DIR}/packaging/tools/make_install.sh")
   INSTALL(CODE "MESSAGE(\"make install script: ${TD_MAKE_INSTALL_SH}\")")
   INSTALL(CODE "execute_process(COMMAND bash ${TD_MAKE_INSTALL_SH} ${TD_SOURCE_DIR} ${PROJECT_BINARY_DIR} Linux ${TD_VER_NUMBER})")
diff --git a/packaging/deb/DEBIAN/control b/packaging/deb/DEBIAN/control
index fd3f81ba082d11f6ff3979382a63597b5806fa1f..a2005be138ea5d41d5e96d17df53d1b73b59b533 100644
--- a/packaging/deb/DEBIAN/control
+++ b/packaging/deb/DEBIAN/control
@@ -1,5 +1,5 @@
 Package: tdengine
-Version: 1.0.0
+Version: 3.0.0
 Section: utils
 Priority: optional
 #Essential: no
diff --git a/packaging/deb/DEBIAN/preinst b/packaging/deb/DEBIAN/preinst
index 184653991c719e24dbbb19f8441cc2103443b622..8a1a7d4d8160c0680d2492699e3d8c4a5709b096 100644
--- a/packaging/deb/DEBIAN/preinst
+++ b/packaging/deb/DEBIAN/preinst
@@ -1,5 +1,10 @@
 #!/bin/bash
 
+if [ -f /var/lib/taos/dnode/dnodeCfg.json ]; then
+  echo -e "The default data directory \033[41;37m/var/lib/taos\033[0m contains old data of tdengine 2.x, please clear it before installing!"
+  exit 1
+fi
+
 csudo=""
 if command -v sudo > /dev/null; then
     csudo="sudo "
diff --git a/packaging/deb/DEBIAN/prerm b/packaging/deb/DEBIAN/prerm
index 14c814eb839cd49fac566fde10a39f7b5d800962..5676bf5c4324a340aab09c18c59636d4fc80d43c 100644
--- a/packaging/deb/DEBIAN/prerm
+++ b/packaging/deb/DEBIAN/prerm
@@ -1,5 +1,9 @@
 #!/bin/bash
 
+if [ $1 -eq "abort-upgrade" ]; then
+  exit 0
+fi
+
 insmetaPath="/usr/local/taos/script"
 
 csudo=""
diff --git a/packaging/rpm/tdengine.spec b/packaging/rpm/tdengine.spec
index d3d4bab0e697f10a4f1824931206cf53fd11d07b..7a34f7a222b13b5e91a88297428df3f425960309 100644
--- a/packaging/rpm/tdengine.spec
+++ b/packaging/rpm/tdengine.spec
@@ -132,6 +132,10 @@ fi
 
 #Scripts executed before installation
 %pre
+if [ -f /var/lib/taos/dnode/dnodeCfg.json ]; then
+  echo -e "The default data directory \033[41;37m/var/lib/taos\033[0m contains old data of tdengine 2.x, please clear it before installing!"
+  exit 1
+fi
 csudo=""
 if command -v sudo > /dev/null; then
     csudo="sudo "