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Linux拥有众多的发行版，每个发行版都有提供镜像，但是，有些镜像的下载速度参差不齐，偶尔会有更新失败的情况。 下面以修改 Ubuntu 软件源为 未来云为例进行说明(镜像地址/香港节点镜像地址)： 1、备份原配置文件 # cp /etc/apt/sources.list /etc/apt/sources.list.backup 2、更改配置文件编辑/etc/apt/sources.list文件, 将内容修改为： Xenial(16.04) deb http://mirrors.niaoyun.com/ubuntu/ Xenial main restricted universe multiverse
deb http://mirrors.niaoyun.com/ubuntu/ Xenial-security main restricted universe multiverse
deb http://mirrors.niaoyun.com/ubuntu/ Xenial-updates main restricted universe multiverse
deb http://mirrors.niaoyun.com/ubuntu/ Xenial-proposed main restricted universe multiverse
deb http://mirrors.niaoyun.com/ubuntu/ Xenial-backports main restricted universe multiverse
deb-src http://mirrors.niaoyun.com/ubuntu/ Xenial main restricted universe multiverse
deb-src http://mirrors.niaoyun.com/ubuntu/ Xenial-security main restricted universe multiverse
deb-src http://mirrors.niaoyun.com/ubuntu/ Xenial-updates main restricted universe multiverse
deb-src http://mirrors.niaoyun.com/ubuntu/ Xenial-proposed main restricted universe multiverse
deb-src http://mirrors.niaoyun.com/ubuntu/ Xenial-backports main restricted universe multiverse Trusty(14.04) deb http://mirrors.niaoyun.com/ubuntu/ Trusty main restricted universe multiverse
deb http://mirrors.niaoyun.com/ubuntu/ Trusty-security main restricted universe multiverse
deb http://mirrors.niaoyun.com/ubuntu/ Trusty-updates main restricted universe multiverse
deb http://mirrors.niaoyun.com/ubuntu/ Trusty-proposed main restricted universe multiverse
deb http://mirrors.niaoyun.com/ubuntu/ Trusty-backports main restricted universe multiverse
deb-src http://mirrors.niaoyun.com/ubuntu/ Trusty main restricted universe multiverse
deb-src http://mirrors.niaoyun.com/ubuntu/ Trusty-security main restricted universe multiverse
deb-src http://mirrors.niaoyun.com/ubuntu/ Trusty-updates main restricted universe multiverse
deb-src http://mirrors.niaoyun.com/ubuntu/ Trusty-proposed main restricted universe multiverse
deb-src http://mirrors.niaoyun.com/ubuntu/ Trusty-backports main restricted universe multiverse Precise(12.04) deb http://mirrors.niaoyun.com/ubuntu/ precise main restricted universe multiverse
deb http://mirrors.niaoyun.com/ubuntu/ precise-security main restricted universe multiverse
deb http://mirrors.niaoyun.com/ubuntu/ precise-updates main restricted universe multiverse
deb http://mirrors.niaoyun.com/ubuntu/ precise-proposed main restricted universe multiverse
deb http://mirrors.niaoyun.com/ubuntu/ precise-backports main restricted universe multiverse
deb-src http://mirrors.niaoyun.com/ubuntu/ precise main restricted universe multiverse
deb-src http://mirrors.niaoyun.com/ubuntu/ precise-security main restricted universe multiverse
deb-src http://mirrors.niaoyun.com/ubuntu/ precise-updates main restricted universe multiverse
deb-src http://mirrors.niaoyun.com/ubuntu/ precise-proposed main restricted universe multiverse
deb-src http://mirrors.niaoyun.com/ubuntu/ precise-backports main restricted universe multiverse
如果是香港节点：
编辑/etc/apt/sources.list文件, 将内容修改为： Xenial(16.04) deb http://hk.mirrors.niaoyun.com/ubuntu/ Xenial main restricted universe multiverse
deb http://hk.mirrors.niaoyun.com/ubuntu/ Xenial-security main restricted universe multiverse
deb http://hk.mirrors.niaoyun.com/ubuntu/ Xenial-updates main restricted universe multiverse
deb http://hk.mirrors.niaoyun.com/ubuntu/ Xenial-proposed main restricted universe multiverse
deb http://hk.mirrors.niaoyun.com/ubuntu/ Xenial-backports main restricted universe multiverse
deb-src http://hk.mirrors.niaoyun.com/ubuntu/ Xenial main restricted universe multiverse
deb-src http://hk.mirrors.niaoyun.com/ubuntu/ Xenial-security main restricted universe multiverse
deb-src http://hk.mirrors.niaoyun.com/ubuntu/ Xenial-updates main restricted universe multiverse
deb-src http://hk.mirrors.niaoyun.com/ubuntu/ Xenial-proposed main restricted universe multiverse
deb-src http://hk.mirrors.niaoyun.com/ubuntu/ Xenial-backports main restricted universe multiverse Trusty(14.04) deb http://hk.mirrors.niaoyun.com/ubuntu/ Trusty main restricted universe multiverse
deb http://hk.mirrors.niaoyun.com/ubuntu/ Trusty-security main restricted universe multiverse
deb http://hk.mirrors.niaoyun.com/ubuntu/ Trusty-updates main restricted universe multiverse
deb http://hk.mirrors.niaoyun.com/ubuntu/ Trusty-proposed main restricted universe multiverse
deb http://hk.mirrors.niaoyun.com/ubuntu/ Trusty-backports main restricted universe multiverse
deb-src http://hk.mirrors.niaoyun.com/ubuntu/ Trusty main restricted universe multiverse
deb-src http://hk.mirrors.niaoyun.com/ubuntu/ Trusty-security main restricted universe multiverse
deb-src http://hk.mirrors.niaoyun.com/ubuntu/ Trusty-updates main restricted universe multiverse
deb-src http://hk.mirrors.niaoyun.com/ubuntu/ Trusty-proposed main restricted universe multiverse
deb-src http://hk.mirrors.niaoyun.com/ubuntu/ Trusty-backports main restricted universe multiverse Precise(12.04)deb http://hk.mirrors.niaoyun.com/ubuntu/ precise main restricted universe multiverse
deb http://hk.mirrors.niaoyun.com/ubuntu/ precise-security main restricted universe multiverse
deb http://hk.mirrors.niaoyun.com/ubuntu/ precise-updates main restricted universe multiverse
deb http://hk.mirrors.niaoyun.com/ubuntu/ precise-proposed main restricted universe multiverse
deb http://hk.mirrors.niaoyun.com/ubuntu/ precise-backports main restricted universe multiverse
deb-src http://hk.mirrors.niaoyun.com/ubuntu/ precise main restricted universe multiverse
deb-src http://hk.mirrors.niaoyun.com/ubuntu/ precise-security main restricted universe multiverse
deb-src http://hk.mirrors.niaoyun.com/ubuntu/ precise-updates main restricted universe multiverse
deb-src http://hk.mirrors.niaoyun.com/ubuntu/ precise-proposed main restricted universe multiverse
deb-src http://hk.mirrors.niaoyun.com/ubuntu/ precise-backports main restricted universe multiverse 3、更新 # apt-get update
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