diff --git a/install-minion.sh b/install-minion.sh
old mode 100644
new mode 100755
index 9f017b6..4d8b71e
--- a/install-minion.sh
+++ b/install-minion.sh
@@ -33,7 +33,40 @@ else
     exit 1
 fi
 
-# Install Salt Minion
+# === CLEANUP: Alte Salt-Installation entfernen ===
+echo ""
+echo "=== Cleanup alte Installation ==="
+
+# Stop services
+systemctl stop salt-minion 2>/dev/null || true
+systemctl stop salt-master 2>/dev/null || true
+systemctl disable salt-minion 2>/dev/null || true
+systemctl disable salt-master 2>/dev/null || true
+
+# Purge packages
+if [ "$OS" = "debian" ]; then
+    apt-get remove --purge -y salt-minion salt-master salt-common salt-ssh 2>/dev/null || true
+    apt-get autoremove -y 2>/dev/null || true
+fi
+
+# Remove config, keys, cache
+rm -rf /etc/salt
+rm -rf /var/cache/salt
+rm -rf /var/log/salt
+rm -rf /var/run/salt
+rm -rf /srv/salt
+rm -rf /srv/pillar
+
+# Remove old repo config
+rm -f /etc/apt/sources.list.d/salt*.list
+rm -f /etc/apt/keyrings/salt-archive-keyring.gpg
+
+echo "Alte Installation bereinigt."
+
+# === INSTALL: Frische Installation ===
+echo ""
+echo "=== Frische Installation ==="
+
 if [ "$OS" = "debian" ]; then
     apt-get install -y gnupg2 curl >/dev/null 2>&1
     curl -fsSL https://packages.broadcom.com/artifactory/api/security/keypair/SaltProjectKey/public | gpg --dearmor -o /etc/apt/keyrings/salt-archive-keyring.gpg
@@ -43,6 +76,7 @@ if [ "$OS" = "debian" ]; then
 fi
 
 # Configure Master
+mkdir -p /etc/salt/minion.d
 cat > /etc/salt/minion.d/master.conf << EOF
 master: $SALT_MASTER
 EOF
@@ -58,7 +92,9 @@ systemctl restart salt-minion
 
 echo ""
 echo "=== Fertig ==="
-echo "Minion installiert und gestartet."
-echo "Grain 'kunde: $KUNDE' gesetzt."
+echo "Salt Version: $(salt-minion --version)"
+echo "Minion ID:    $(hostname)"
+echo "Grain:        kunde: $KUNDE"
+echo "Master:       $SALT_MASTER"
 echo ""
 echo "Naechster Schritt: Salt Master kontaktieren fuer Key-Akzeptanz."