国内一般都保留最近几个安装源,旧版的安装源如下:
官网——http://old-releases.ubuntu.com/ubuntu/
国内中科大——http://mirrors.ustc.edu.cn/ubuntu-old-releases/ubuntu/
我的是15.04,版本代号为vivid,sources.list如下,其他版本的把vivid替换为对应的版本代号就可以了:
deb http://mirrors.ustc.edu.cn/ubuntu-old-releases/ubuntu/ vivid main restricted universe multiverse deb http://mirrors.ustc.edu.cn/ubuntu-old-releases/ubuntu/ vivid-security main restricted universe multiverse deb http://mirrors.ustc.edu.cn/ubuntu-old-releases/ubuntu/ vivid-updates main restricted universe multiverse deb http://mirrors.ustc.edu.cn/ubuntu-old-releases/ubuntu/ vivid-proposed main restricted universe multiverse deb http://mirrors.ustc.edu.cn/ubuntu-old-releases/ubuntu/ vivid-backports main restricted universe multiverse deb-src http://mirrors.ustc.edu.cn/ubuntu-old-releases/ubuntu/ vivid main restricted universe multiverse deb-src http://mirrors.ustc.edu.cn/ubuntu-old-releases/ubuntu/ vivid-security main restricted universe multiverse deb-src http://mirrors.ustc.edu.cn/ubuntu-old-releases/ubuntu/ vivid-updates main restricted universe multiverse deb-src http://mirrors.ustc.edu.cn/ubuntu-old-releases/ubuntu/ vivid-proposed main restricted universe multiverse deb-src http://mirrors.ustc.edu.cn/ubuntu-old-releases/ubuntu/ vivid-backports main restricted universe multiverse