国内用户使用国内的镜像源速度会快点.
ubuntu_163source
但是在使用163等源替换系统的/etc/apt/source.list的源会出现hash sum mistach问题.主要就是GFW的问题，导致了我们获取到的文件和官方源上的文件大小不一致，所以出出现Hash Sum mismatch问题。解决方法

  • 使用代理更新
  • 使用ali源作为替代
    source163updateerror
    附上ali源
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    deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
    deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
    deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
    deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
    deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
    deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
    deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
    deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
    deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
    deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse

这里我也自制了一个阿里源的生成器