可以查企业的网站,ui设计是什么工作,装修公司做推广网站怎么弄,如何做一个二维码相册今天在Ubuntu系统上#xff0c;使用sudo apt update命令#xff0c;进行更新时#xff0c;弹出无法解析域名 cn.archive.ubuntu.com问题#xff0c;如图(1)所示#xff1a; 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… 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.bak3 修改sources.list的权限
su root
chmod 666 /etc/apt/sources.list4 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 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 multiverse5 刷新apt源
sudo apt-get update
sudo apt-get upgrade6 其他镜像
6.1 阿里云的Ubuntu镜像
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 multiverse6.2 清华的Ubuntu镜像
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 multiverse6.3 中科大的Ubuntu镜像
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
