Switch first boot setup to console wizard

autoinstall/firstboot-setup.sh

@@ -10,6 +10,13 @@ AIPACKAGE_DIR="/opt/aipackage"
 LOG_FILE="/var/log/cezen-setup.log"
 exec > >(tee -a "$LOG_FILE") 2>&1
 
+detect_iface() {
+  ip route show default 2>/dev/null | awk '/default/ {print $5; exit}'
+}
+
+IFACE="$(detect_iface)"
+IFACE="${IFACE:-$(ip -o link show | awk -F': ' '$2 !~ /lo|docker|br-|veth/ {print $2; exit}')}"
+
 # ── Colors / terminal setup ────────────────────────────────
 export NEWT_COLORS='
 root=,black
@@ -49,9 +56,7 @@ NET_MODE=$(whiptail --title "$TITLE" \
   3>&1 1>&2 2>&3)
 
 if [ "$NET_MODE" = "Static" ]; then
-
-  # Detect first ethernet interface
-  IFACE=$(ip -o link show | awk -F': ' '$2 !~ /lo|docker|br-|veth/ {print $2; exit}')
+  rm -f /etc/netplan/99-cezen-dhcp.yaml || true
 
   IP_ADDR=$(whiptail --title "$TITLE" \
     --inputbox "\nEnter static IP address:\n(Example: 192.168.1.100)" \
@@ -100,12 +105,22 @@ EOF
   fi
 
 else
-  # DHCP — just confirm it's working
+  # DHCP — persist it explicitly and confirm it's working
+  rm -f /etc/netplan/99-cezen-static.yaml || true
+  cat > /etc/netplan/99-cezen-dhcp.yaml << EOF
+network:
+  version: 2
+  ethernets:
+    ${IFACE}:
+      dhcp4: true
+EOF
+
+  netplan apply 2>/dev/null || true
   sleep 2
   MY_IP=$(hostname -I | awk '{print $1}')
   if [ -n "$MY_IP" ]; then
     whiptail --title "$TITLE" \
-      --msgbox "\nDHCP configured successfully!\n\nServer IP: ${MY_IP}\n\nYou can set a static IP later via:\n  sudo nano /etc/netplan/50-cloud-init.yaml" \
+      --msgbox "\nDHCP configured successfully!\n\nServer IP: ${MY_IP}\n\nYou can switch to a static IP later by editing:\n  /etc/netplan/99-cezen-dhcp.yaml" \
       $H $W
   else
     whiptail --title "$TITLE" \
@@ -190,3 +205,7 @@ touch /opt/cezen/.setup-done
 
 # Run the installer
 bash "$AIPACKAGE_DIR/install.sh" --tier="$TIER"
+
+whiptail --title "$TITLE" \
+  --msgbox "\nInstaller command finished.\n\nFor detailed logs, run:\n  sudo journalctl -u cezen-phase2.service -f\n  sudo tail -f /var/log/cezen-install.log" \
+  $H $W