diff --git a/script/gspylib/common/DbClusterInfo.py b/script/gspylib/common/DbClusterInfo.py
index 5812669..c183975 100644
--- a/script/gspylib/common/DbClusterInfo.py
+++ b/script/gspylib/common/DbClusterInfo.py
@@ -3358,11 +3358,11 @@ class dbClusterInfo():
         output : NA
         """
         # get backIp
-        dbNode.backIps = self.__readNodeIps(dbNode.name, "backIp")
+        dbNode.backIps = self.compress_ips(self.__readNodeIps(dbNode.name, "backIp"))
         if (len(dbNode.backIps) == 0):
             raise Exception(ErrorCode.GAUSS_512["GAUSS_51207"] % dbNode.name)
         # get sshIp
-        dbNode.sshIps = self.__readNodeIps(dbNode.name, "sshIp")
+        dbNode.sshIps = self.compress_ips(self.__readNodeIps(dbNode.name, "sshIp"))
         if (len(dbNode.sshIps) == 0):
             dbNode.sshIps = dbNode.backIps[:]
         # get virtualIp
diff --git a/script/impl/install/InstallImpl.py b/script/impl/install/InstallImpl.py
index 995c5af..4ca7a21 100644
--- a/script/impl/install/InstallImpl.py
+++ b/script/impl/install/InstallImpl.py
@@ -167,7 +167,7 @@ class InstallImpl:
             hostname = syncNode
             if syncNumFirst and syncNum != -1:
                 raise Exception(ErrorCode.GAUSS_530["GAUSS_53011"] % 
-                                "syncNode_hostname and dataNode1 cannot be exist at the same time")
+                                "syncNode_hostname and dataNode1_syncNum cannot be exist at the same time")
                 
             if syncNumFirst and syncNum == -1:
                 syncNumFirstRe = re.sub('[,\s]', '', syncNumFirst)
diff --git a/script/local/PreInstallUtility.py b/script/local/PreInstallUtility.py
index 2ead21e..b0ddcff 100644
--- a/script/local/PreInstallUtility.py
+++ b/script/local/PreInstallUtility.py
@@ -1656,6 +1656,8 @@ Common options:
         FileUtil.deleteLine(userProfile, "^\\s*export\\s*PGDATA*")
         # clean PGPORT
         FileUtil.deleteLine(userProfile, "^\\s*export\\s*PGPORT*")
+        # clean IP_TYPE
+        FileUtil.deleteLine(userProfile, "^\\s*export\\s*IP_TYPE*")
         # clean PGDATABASE
         FileUtil.deleteLine(userProfile, "^\\s*export\\s*PGDATABASE*")
         # clean LD_LIBRARY_PATH
@@ -1677,7 +1679,7 @@ Common options:
                                 "^\\s*export\\s*PATH=\\$PATH:\\$GPHOME\\/script\\/gspylib\\"
                                 "/pssh\\/bin:\\$GPHOME\\/script$")
             FileUtil.deleteLine(userProfile,
-                                "^\\s*export\\s*PATH=\\$PATH:\\/root\\/gauss_om\\/%s\\"
+                                "^\\s*export\\s*PATH=\\$PATH:\\/home\\/%s\\/gauss_om\\"
                                 "/script$" % self.user)
         FileUtil.deleteLine(userProfile,
                           "^\\s*export\\s*PATH=\\$GPHOME\\/pssh-2.3.1\\/bin:"
@@ -1686,7 +1688,7 @@ Common options:
                           "^\\s*export\\s*PATH=\\$GPHOME\\/script\\/gspylib\\"
                           "/pssh\\/bin:\\$GPHOME\\/script:\\$PATH$")
         FileUtil.deleteLine(userProfile,
-                          "^\\s*export\\s*PATH=\\/root\\/gauss_om\\/%s\\"
+                          "^\\s*export\\s*PATH=\\/home\\/%s\\/gauss_om\\"
                           "/script:\\$PATH$" % self.user)
         self.logger.debug("Deleting crash PATH in user environment variables.")
         # clean PYTHONPATH