Ubuntu報“無法解析域名cn.archive.ubuntu.com“問題解決辦法

更新時間：2024年11月08日 10:02:13 作者：sanqima

在Ubuntu系統(tǒng)上使用sudo?apt?update命令更新時可能遇到“無法解析域名cn.archive.ubuntu.com”的問題,這通常是因為cn.archive.ubuntu.com的鏡像資源不穩(wěn)定,為解決此問題,可以更換為穩(wěn)定性好、速度快的鏡像源,需要的朋友可以參考下

發(fā)現(xiàn)問題

今天在Ubuntu系統(tǒng)上，使用sudo apt update命令，進行更新時，彈出"無法解析域名 cn.archive.ubuntu.com"問題，如圖(1)所示：

圖(1) 彈出"無法解析域名 cn.archive.ubuntu.com" 錯誤

出現(xiàn)這種現(xiàn)象的原因: cn.archive.ubuntu.com這個網(wǎng)站的鏡像資源不穩(wěn)定，dns經(jīng)常解析出錯，需要改成穩(wěn)定性好、速度快的Ubuntu鏡像，,比如,

163鏡像(http://mirrors.163.com/ubuntu/)、
清華源鏡像(https://mirrors.tuna.tsinghua.edu.cn/ubuntu/)
中科大鏡像(https://mirrors.ustc.edu.cn/ubuntu/)
阿里云鏡像(http://mirrors.aliyun.com/ubuntu/)

這里推薦163鏡像(http://mirrors.163.com/ubuntu/)，解決步驟如下：

1 查看Ubuntu的發(fā)行版本

查看Ubuntu的發(fā)行版本，命令如下：

lsb_release -a

由圖(2) 可知，當前系統(tǒng)的發(fā)行版本是bionic，則Ubuntu的apt源鏡像要選擇bionic版本。

注意：鏡像源的版本，要與當前系統(tǒng)的發(fā)行版本(代號版本)保持一致。

圖(2) 查看Ubuntu的發(fā)行版本(即代號,昵稱)

2 備份sources.list

sudo  cp  /etc/apt/sources.list    /etc/apt/sources.list.bak

3 修改sources.list的權限

su root
chmod 666 /etc/apt/sources.list

4 填寫Ubuntu鏡像

將原來的sources.list文件里的內容清空，然后，填入如下的163的apt源(鏡像):

deb http://mirrors.163.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse

5 刷新apt源

sudo apt-get update
sudo apt-get upgrade

6 其他鏡像

6.1 阿里云的Ubuntu鏡像

deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse

6.2 清華的Ubuntu鏡像

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

6.3 中科大的Ubuntu鏡像

deb https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse