diff --git a/script/gs_check b/script/gs_check
index 7cac364..05d5625 100644
--- a/script/gs_check
+++ b/script/gs_check
@@ -29,6 +29,16 @@ import time
 import pwd
 import grp
 import pickle
+package_path = os.path.dirname(os.path.realpath(__file__))
+ld_path = package_path + "/gspylib/clib"
+if 'LD_LIBRARY_PATH' not in os.environ:
+    os.environ['LD_LIBRARY_PATH'] = ld_path
+    os.execve(os.path.realpath(__file__), sys.argv, os.environ)
+if not os.environ.get('LD_LIBRARY_PATH').startswith(ld_path):
+    os.environ['LD_LIBRARY_PATH'] = \
+        ld_path + ":" + os.environ['LD_LIBRARY_PATH']
+    os.execve(os.path.realpath(__file__), sys.argv, os.environ)
+
 import xml.etree.cElementTree as ETree
 from itertools import combinations
 from datetime import datetime, timedelta
diff --git a/script/gs_install b/script/gs_install
index cd6bfb0..1c60f8b 100644
--- a/script/gs_install
+++ b/script/gs_install
@@ -21,6 +21,15 @@
 
 import os
 import sys
+package_path = os.path.dirname(os.path.realpath(__file__))
+ld_path = package_path + "/gspylib/clib"
+if 'LD_LIBRARY_PATH' not in os.environ:
+    os.environ['LD_LIBRARY_PATH'] = ld_path
+    os.execve(os.path.realpath(__file__), sys.argv, os.environ)
+if not os.environ.get('LD_LIBRARY_PATH').startswith(ld_path):
+    os.environ['LD_LIBRARY_PATH'] = \
+        ld_path + ":" + os.environ['LD_LIBRARY_PATH']
+    os.execve(os.path.realpath(__file__), sys.argv, os.environ)
 
 sys.path.append(sys.path[0])
 from gspylib.common.GaussLog import GaussLog
diff --git a/script/gs_postuninstall b/script/gs_postuninstall
index 30f2027..0a1f8d9 100644
--- a/script/gs_postuninstall
+++ b/script/gs_postuninstall
@@ -31,7 +31,7 @@ ld_path = package_path + "/gspylib/clib"
 if 'LD_LIBRARY_PATH' not in os.environ:
     os.environ['LD_LIBRARY_PATH'] = ld_path
     os.execve(os.path.realpath(__file__), sys.argv, os.environ)
-if ld_path not in os.environ.get('LD_LIBRARY_PATH'):
+if not os.environ.get('LD_LIBRARY_PATH').startswith(ld_path):
     os.environ['LD_LIBRARY_PATH'] = \
         ld_path + ":" + os.environ['LD_LIBRARY_PATH']
     os.execve(os.path.realpath(__file__), sys.argv, os.environ)
diff --git a/script/gs_preinstall b/script/gs_preinstall
index abc8141..e9e4194 100644
--- a/script/gs_preinstall
+++ b/script/gs_preinstall
@@ -318,9 +318,9 @@ General options:
         ld_path = package_path + "/gspylib/clib"
         rerun = True
  
-        if not 'LD_LIBRARY_PATH' in os.environ:
+        if 'LD_LIBRARY_PATH' not in os.environ:
             os.environ['LD_LIBRARY_PATH'] = ld_path
-        elif not ld_path in os.environ.get('LD_LIBRARY_PATH'):
+        elif not os.environ.get('LD_LIBRARY_PATH').startswith(ld_path):
             os.environ['LD_LIBRARY_PATH'] = \
                 ld_path + ":" + os.environ['LD_LIBRARY_PATH']
         else:
diff --git a/script/gs_ssh b/script/gs_ssh
index c50a8f5..bb15220 100644
--- a/script/gs_ssh
+++ b/script/gs_ssh
@@ -20,6 +20,15 @@
 #############################################################################
 import os
 import sys
+package_path = os.path.dirname(os.path.realpath(__file__))
+ld_path = package_path + "/gspylib/clib"
+if 'LD_LIBRARY_PATH' not in os.environ:
+    os.environ['LD_LIBRARY_PATH'] = ld_path
+    os.execve(os.path.realpath(__file__), sys.argv, os.environ)
+if not os.environ.get('LD_LIBRARY_PATH').startswith(ld_path):
+    os.environ['LD_LIBRARY_PATH'] = \
+        ld_path + ":" + os.environ['LD_LIBRARY_PATH']
+    os.execve(os.path.realpath(__file__), sys.argv, os.environ)
 
 from gspylib.common.GaussLog import GaussLog
 from gspylib.common.Common import DefaultValue
diff --git a/script/gs_sshexkey b/script/gs_sshexkey
index 14a2e1a..fe3034e 100644
--- a/script/gs_sshexkey
+++ b/script/gs_sshexkey
@@ -33,6 +33,16 @@ import grp
 import socket
 import getpass
 import shutil
+package_path = os.path.dirname(os.path.realpath(__file__))
+ld_path = package_path + "/gspylib/clib"
+if 'LD_LIBRARY_PATH' not in os.environ:
+    os.environ['LD_LIBRARY_PATH'] = ld_path
+    os.execve(os.path.realpath(__file__), sys.argv, os.environ)
+if not os.environ.get('LD_LIBRARY_PATH').startswith(ld_path):
+    os.environ['LD_LIBRARY_PATH'] = \
+        ld_path + ":" + os.environ['LD_LIBRARY_PATH']
+    os.execve(os.path.realpath(__file__), sys.argv, os.environ)
+
 from gspylib.common.GaussLog import GaussLog
 from gspylib.common.ErrorCode import ErrorCode
 from gspylib.threads.parallelTool import parallelTool
diff --git a/script/gspylib/inspection/common/CheckResult.py b/script/gspylib/inspection/common/CheckResult.py
index c40d8b9..87281e5 100644
--- a/script/gspylib/inspection/common/CheckResult.py
+++ b/script/gspylib/inspection/common/CheckResult.py
@@ -236,7 +236,8 @@ class CheckResult(object):
         for itemResult in self._items:
             resultDic['name'] = itemResult.name
             resultDic['category'] = itemResult.category
-            resultDic['std'] = itemResult.standard.decode('utf-8', 'ignore')
+            resultDic['std'] = "" if itemResult.standard.strip() == "" \
+                else itemResult.standard.decode('utf-8', 'ignore')
             resultDic['rst'] = itemResult.rst
             resultDic['analysis'] = itemResult.analysis
             resultDic['suggestion'] = itemResult.suggestion
diff --git a/script/gspylib/inspection/items/network/CheckNICModel.py b/script/gspylib/inspection/items/network/CheckNICModel.py
index baf120e..e617128 100644
--- a/script/gspylib/inspection/items/network/CheckNICModel.py
+++ b/script/gspylib/inspection/items/network/CheckNICModel.py
@@ -66,8 +66,8 @@ class CheckNICModel(BaseItem):
                 cmd = "lspci |grep %s" % PCIAddr
                 (status, output) = subprocess.getstatusoutput(cmd)
                 self.result.raw += "%s\n" % (output)
-                if (status == 0 and len(output.split(':')) == 3):
-                    modelInfo = output.split(':')[2].split('(')[0]
+                if status == 0 and len(output.split(':')) >= 3:
+                    modelInfo = ':'.join(output.split(':')[2:]).split('(')[0]
                     self.result.val += "model: %s\n" % (modelInfo.strip())
                 else:
                     self.result.val += "Failed to get NIC %s model" \
diff --git a/simpleInstall/install.sh b/simpleInstall/install.sh
index ebc393f..941e597 100644
--- a/simpleInstall/install.sh
+++ b/simpleInstall/install.sh
@@ -106,7 +106,7 @@ function fn_get_openGauss_tar()
         then
             url="https://opengauss.obs.cn-south-1.myhuaweicloud.com/1.1.0/${system_arch}/openGauss-1.1.0-${system_name}-64bit-all.tar.gz"
             echo "Downloading openGauss tar from official website at ${install_tar}"
-            wget $url --timeout=30 --tries=3 && tar -zxvf openGauss-1.1.0-${system_name}-64bit-all.tar.gz
+            wget $url --timeout=30 --tries=3 && tar -zxf openGauss-1.1.0-${system_name}-64bit-all.tar.gz
             if [ $? -ne 0 ]
             then
                 echo "wget error. The $install_tar need openGauss-1.1.0-${system_name}-64bit-om.tar.gz"