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# Proxmox VE 網路設定儲存時出現『you need ifupdown2 to reload network configuration (500)』錯誤
- URL: https://www.albert-yu.com/blog/proxmox-ve-ifupdown2-network-reload-error-500/
- Published: 2021-05-28T15:45:44.000Z
- Updated: 2026-10-30T03:43:31.000Z
- Author: Albert Yu
- Tags: OS, Proxmox VE

Proxmox VE 修改網路是非常常見的一個設定

但是在新Proxmox VE 安裝好之時常常會出現無法儲存網路設定的狀況但是種開機時又會正常生效

發生的流程當我們修改好網路之後再下圖標記的位置當中會需要我們去套用設定

![](https://www.albert-yu.com/content/images/2026/10/proxmox-ve-wang-lu-she-ding-chu-cun-shi-chu-xian-you-need-ifupdown2-to-reload-network-configuration-500-cuo-wu-01.png)

當我們套用設定時就會出現確認視窗

![](https://www.albert-yu.com/content/images/2026/10/proxmox-ve-wang-lu-she-ding-chu-cun-shi-chu-xian-you-need-ifupdown2-to-reload-network-configuration-500-cuo-wu-02.png)

但是我再確認的時候就會跳出這個錯誤代碼`you need ifupdown2 to reload network configuration (500)`

![](https://www.albert-yu.com/content/images/2026/10/proxmox-ve-wang-lu-she-ding-chu-cun-shi-chu-xian-you-need-ifupdown2-to-reload-network-configuration-500-cuo-wu-03.png)

這是由於新安裝的系統當中需要ifupdown2才能配合Proxmox VE進行設定套用

但是系統預設是沒有裝的

如果要安裝只要進到指令畫面

輸入`apt-get install ifupdown2 -y`即可安裝

![](https://www.albert-yu.com/content/images/2026/10/proxmox-ve-wang-lu-she-ding-chu-cun-shi-chu-xian-you-need-ifupdown2-to-reload-network-configuration-500-cuo-wu-04.png)

安裝完畢之後『套用設定』即可正常運行