diff --git a/pkg/deb/DEBIAN/postinst b/pkg/deb/DEBIAN/postinst
index 9304d9e..035d371 100644
--- a/pkg/deb/DEBIAN/postinst
+++ b/pkg/deb/DEBIAN/postinst
@@ -40,6 +40,13 @@ if [ ! -f $RootDir/machine.ini ]; then
     systemctl restart sshsvc.service
 else
     # Operation when upgrading
+    if [ ! -f $RootDir/omc.conf ]; then
+      chmod +rx /usr/local/bin/omc
+      cp $RootDir/default/omc.conf $RootDir/omc.conf
+      cp $RootDir/default/omc.yaml $RootDir/omc.yaml
+      cp $RootDir/default/sshsvc.yaml $RootDir/sshsvc.yaml
+      cp $RootDir/web/default/config.js $RootDir/web/config.js
+    fi
 
     bash $RootDir/script/setup.sh -u
     if [ $? -ne 0 ]; then
diff --git a/pkg/rpm/SPECS/omc.spec b/pkg/rpm/SPECS/omc.spec
index df3514c..9860b0e 100644
--- a/pkg/rpm/SPECS/omc.spec
+++ b/pkg/rpm/SPECS/omc.spec
@@ -42,7 +42,7 @@ echo "    firewall-cmd --zone=public --remove-port=80/tcp --permanent && firewal
 echo ""
 
 # Check if this is the first installation or upgrade
-if [ ! -f $RootDir/omc.conf ]; then
+if [ ! -f $RootDir/machine.ini ]; then
     # First installation, perform the related operations
     chmod +rx /usr/local/bin/omc
     cp $RootDir/default/omc.conf $RootDir/omc.conf
@@ -72,6 +72,13 @@ if [ ! -f $RootDir/omc.conf ]; then
     systemctl restart sshsvc.service
 else
     # Operation when upgrading
+    if [ ! -f $RootDir/omc.conf ]; then
+      chmod +rx /usr/local/bin/omc
+      cp $RootDir/default/omc.conf $RootDir/omc.conf
+      cp $RootDir/default/omc.yaml $RootDir/omc.yaml
+      cp $RootDir/default/sshsvc.yaml $RootDir/sshsvc.yaml
+      cp $RootDir/web/default/config.js $RootDir/web/config.js
+    fi
 
     bash $RootDir/script/setup.sh -u
     if [ $? -ne 0 ]; then