diff --git a/scripts/install_pve.sh b/scripts/install_pve.sh
index d1e2875..11e4db9 100644
--- a/scripts/install_pve.sh
+++ b/scripts/install_pve.sh
@@ -338,23 +338,27 @@ install_package ipcalc
 if grep -q "source /etc/network/interfaces.d/*" /etc/network/interfaces; then
   # 检查/etc/network/interfaces.d/文件夹下是否有50-cloud-init文件
   if [ -f /etc/network/interfaces.d/50-cloud-init ]; then
-#     # 检查50-cloud-init文件中是否有iface eth0 inet dhcp行
-#     if grep -q "iface eth0 inet dhcp" /etc/network/interfaces.d/50-cloud-init; then
-#       cp /etc/network/interfaces.d/50-cloud-init /etc/network/interfaces.d/50-cloud-init.bak
-#       # 获取ipv4、subnet、gateway信息
-#       gateway=$(ip route | awk '/default/ {print $3}')
-#       eth0info=$(ip -o -4 addr show dev eth0 | awk '{print $4}')
-#       ipv4=$(echo $eth0info | cut -d'/' -f1)
-#       subnet=$(echo $eth0info | cut -d'/' -f2)
-#       subnet=$(ipcalc -n "$ipv4/$subnet" | grep -oP 'Netmask:\s+\K.*' | awk '{print $1}')
-#       chattr -i /etc/network/interfaces.d/50-cloud-init
-#       sed -i "/iface eth0 inet dhcp/c\
-#         iface eth0 inet static\n\
-#         address $ipv4\n\
-#         netmask $subnet\n\
-#         gateway $gateway\n\
-#         dns-nameservers 8.8.8.8 8.8.4.4" /etc/network/interfaces.d/50-cloud-init
-#     fi
+    # 检查50-cloud-init文件中是否有iface eth0 inet dhcp行 - 看来还是得转动态为静态判断东西
+    if grep -q "iface eth0 inet dhcp" /etc/network/interfaces.d/50-cloud-init; then
+      cp /etc/network/interfaces.d/50-cloud-init /etc/network/interfaces.d/50-cloud-init.bak
+      # 获取ipv4、subnet、gateway信息
+      gateway=$(ip route | awk '/default/ {print $3}')
+      eth0info=$(ip -o -4 addr show dev eth0 | awk '{print $4}')
+      ipv4=$(echo $eth0info | cut -d'/' -f1)
+      subnet=$(echo $eth0info | cut -d'/' -f2)
+      subnet=$(ipcalc -n "$ipv4/$subnet" | grep -oP 'Netmask:\s+\K.*' | awk '{print $1}')
+      chattr -i /etc/network/interfaces.d/50-cloud-init
+      sed -i "/iface eth0 inet dhcp/c\
+        iface eth0 inet static\n\
+        address $ipv4\n\
+        netmask $subnet\n\
+        gateway $gateway\n\
+        dns-nameservers 8.8.8.8 8.8.4.4" /etc/network/interfaces.d/50-cloud-init
+    fi
+    if ! grep -q "iface ${interface} inet manual" "$interfaces_file" && ! grep -q "iface ${interface} inet manual" /etc/network/interfaces.d/50-cloud-init; then
+	echo "Can not find 'iface ${interface} inet manual' in ${interfaces_file} or /etc/network/interfaces.d/50-cloud-init"
+	echo "iface ${interface} inet manual" >> "$interfaces_file"
+    fi
     chattr +i /etc/network/interfaces.d/50-cloud-init
   fi
 fi