diff --git a/debian/postinst b/debian/postinst
index 66f5524..cc7efc9 100644
--- a/debian/postinst
+++ b/debian/postinst
@@ -21,6 +21,7 @@ INSTALL_ROOT=/opt/ChineseChess
 case "$1" in
     configure)
 	    mkdir -p $INSTALL_ROOT/etc
+		mkdir -p $INSTALL_ROOT/log
         chmod -R a+rw $INSTALL_ROOT/log
 
         if [ ! -f /usr/share/applications/org.Rabbit.ChineseChess.desktop ]; then
@@ -43,6 +44,7 @@ case "$1" in
         rm -fr /usr/share/applications/org.Rabbit.ChineseChess.desktop
         rm -fr /etc/ld.so.conf.d/ChineseChess.conf
         rm -fr /usr/share/pixmaps/org.Rabbit.ChineseChess.png
+        rm -fr $INSTALL_ROOT/log
     ;;
 
     *)
diff --git a/debian/postrm b/debian/postrm
index 2742632..6fbdad3 100644
--- a/debian/postrm
+++ b/debian/postrm
@@ -18,13 +18,14 @@ set -e
 # for details, see https://www.debian.org/doc/debian-policy/ or
 # the debian-policy package
 
-
+INSTALL_ROOT=/opt/ChineseChess
 case "$1" in
     purge|remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
         rm -fr /usr/share/applications/org.Rabbit.ChineseChess.desktop
-        rm -fr /etc/ld.so.conf.d/ChineseChess.conf
+        #rm -fr /etc/ld.so.conf.d/ChineseChess.conf
         rm -fr /usr/share/pixmaps/org.Rabbit.ChineseChess.png
-        ldconfig
+        rm -fr $INSTALL_ROOT/log
+        #ldconfig
     ;;
 
     *)
diff --git a/debian/rules b/debian/rules
index 53f9378..99cbc7e 100755
--- a/debian/rules
+++ b/debian/rules
@@ -41,12 +41,18 @@ override_dh_auto_build:
 	cmake --build $(BUILD_DIR) --config Release
 
 override_dh_auto_install:
-	cmake --install $(BUILD_DIR) --config Release --component Runtime --prefix $(PACKAGE_chinesechess_DIR)/opt/ChineseChess
-	cmake --install $(BUILD_DIR) --config Release --component QtRuntime --prefix $(PACKAGE_chinesechess_DIR)/opt/ChineseChess
-	cmake --install $(BUILD_DIR) --config Release --component DependLibraries --prefix $(PACKAGE_chinesechess_DIR)/opt/ChineseChess
-	cmake --install $(BUILD_DIR) --config Release --component QtApplications --prefix $(PACKAGE_chinesechess_DIR)/opt/ChineseChess
-	cmake --install $(BUILD_DIR) --config Release --component Development --prefix $(PACKAGE_chinesechess_dev_DIR)/opt/ChineseChess
-	cmake --install $(BUILD_DIR) --config Release --component QtDevelopment --prefix $(PACKAGE_chinesechess_dev_DIR)/opt/ChineseChess
+	cmake --install $(BUILD_DIR) --config Release --component Runtime \
+		--prefix $(PACKAGE_chinesechess_DIR)/opt/ChineseChess
+	cmake --install $(BUILD_DIR) --config Release --component QtRuntime \
+		--prefix $(PACKAGE_chinesechess_DIR)/opt/ChineseChess
+	cmake --install $(BUILD_DIR) --config Release --component DependLibraries \
+		--prefix $(PACKAGE_chinesechess_DIR)/opt/ChineseChess
+	cmake --install $(BUILD_DIR) --config Release --component QtApplications \
+		--prefix $(PACKAGE_chinesechess_DIR)/opt/ChineseChess
+	cmake --install $(BUILD_DIR) --config Release --component Development \
+		--prefix $(PACKAGE_chinesechess_dev_DIR)/opt/ChineseChess
+	cmake --install $(BUILD_DIR) --config Release --component QtDevelopment \
+		--prefix $(PACKAGE_chinesechess_dev_DIR)/opt/ChineseChess
 
 override_dh_builddeb:
 	dh_builddeb --package=chinesechess -P$(PACKAGE_chinesechess_DIR)