Ubuntu.md

镜像配置

Ubuntu镜像配置文件位于/etc/apt/sources.list。

1. 使用命令修改

   sudo sed -ri.bak -e 's/\/\/.*?(archive.ubuntu.com|mirrors.*?)\/ubuntu/\/\/mirrors.pku.edu.cn\/ubuntu/g' -e '/security.ubuntu.com\/ubuntu/d' /etc/apt/sources.list

   注：该命令表示将archive.ubuntu.com和mirrors.*替换为mirrors.pku.edu.cn，并把security.ubuntu.com删除。

   修改文件后需要更新索引：

   sudo apt-get update

2. 或直接替换文件

   可通过如下命令直接下载配置文件并替换原有的/etc/apt/sources.list：

   sudo wget http://mirrors.pku.edu.cn/repoconfig/ubuntu{ubuntu_version}/sources.list -O /etc/apt/sources.list

   或手动替换文件内容为：

   deb http://mirrors.pku.edu.cn/ubuntu {ubuntu_codename} main restricted universe multiverse
   # deb-src http://mirrors.pku.edu.cn/ubuntu {ubuntu_codename} main restricted universe multiverse
   
   deb http://mirrors.pku.edu.cn/ubuntu {ubuntu_codename}-updates main restricted universe multiverse
   # deb-src http://mirrors.pku.edu.cn/ubuntu {ubuntu_codename}-updates main restricted universe multiverse
   
   deb http://mirrors.pku.edu.cn/ubuntu {ubuntu_codename}-backports main restricted universe multiverse
   # deb-src http://mirrors.pku.edu.cn/ubuntu {ubuntu_codename}-backports main restricted universe multiverse
   
   deb http://mirrors.pku.edu.cn/ubuntu {ubuntu_codename}-security main restricted universe multiverse
   # deb-src http://mirrors.pku.edu.cn/ubuntu {ubuntu_codename}-security main restricted universe multiverse
   
   ## Uncomment the following two lines to add software from Canonical's
   ## 'partner' repository.
   ## This software is not part of Ubuntu, but is offered by Canonical and the
   ## respective vendors as a service to Ubuntu users.
   # deb http://archive.canonical.com/ubuntu {ubuntu_codename} partner
   # deb-src http://archive.canonical.com/ubuntu {ubuntu_codename} partner
   

   修改文件后需要更新索引：

   sudo apt-get update