一、关上openwrt终端

二、找到distfeeds.conf

进入opkg
cd /etc/opkg

查看opkg内文件
ls

能够找到distfeeds.conf，并进入编辑
vi distfeeds.conf

三、进入distfeeds.conf

输出i变插入模式
i

四、替换镜像源地址

openwrt阿里云镜像源地址
https://mirrors.aliyun.com/openwrt

依据你的软件版本替换镜像源

https://mirrors.aliyun.com/openwrt/releases/18.06.8/targets/brcm2708/bcm2710/packages/
https://mirrors.aliyun.com/openwrt/releases/18.06.8/packages/aarch64_cortex-a53/base/
https://mirrors.aliyun.com/openwrt/releases/18.06.8/packages/aarch64_cortex-a53/luci/
https://mirrors.aliyun.com/openwrt/releases/18.06.8/packages/aarch64_cortex-a53/packages/
https://mirrors.aliyun.com/openwrt/releases/18.06.8/packages/aarch64_cortex-a53/routing/

五、保留退出并测试

保留退出命令
:wq

用更新命令测试
opkg update

测试后果，更新胜利。