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解决Ubuntu报“无法解析域名cn.archive.ubuntu.com“问题

3 人参与  2024年09月11日 14:01  分类 : 《资源分享》  评论

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    今天在Ubuntu系统上,使用sudo apt update命令,进行更新时,弹出"无法解析域名 cn.archive.ubuntu.com"问题,如图(1)所示:

图(1) 弹出"无法解析域名 cn.archive.ubuntu.com" 错误

    出现这种现象的原因: cn.archive.ubuntu.com这个网站的镜像资源不稳定,dns经常解析出错,需要改成稳定性好、速度快的Ubuntu镜像,,比如,

163镜像(http://mirrors.163.com/ubuntu/)、清华源镜像(https://mirrors.tuna.tsinghua.edu.cn/ubuntu/)中科大镜像(https://mirrors.ustc.edu.cn/ubuntu/)阿里云镜像(http://mirrors.aliyun.com/ubuntu/)

    这里推荐163镜像(http://mirrors.163.com/ubuntu/),解决步骤如下:

1 查看Ubuntu的发行版本

    查看Ubuntu的发行版本,命令如下:

lsb_release -a

    由图(2) 可知,当前系统的发行版本是bionic,则Ubuntu的apt源镜像要选择bionic版本。
    注意:镜像源的版本,要与当前系统的发行版本(代号版本)保持一致。

图(2) 查看Ubuntu的发行版本(即代号,昵称)

2 备份sources.list

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

3 修改sources.list的权限

su rootchmod 666 /etc/apt/sources.list

4 填写Ubuntu镜像

    将原来的sources.list文件里的内容清空,然后,填入如下的163的apt源(镜像):

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

5 刷新apt源

sudo apt-get updatesudo apt-get upgrade

6 其他镜像

6.1 阿里云的Ubuntu镜像

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

6.2 清华的Ubuntu镜像

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

6.3 中科大的Ubuntu镜像

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

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