创建本地Ubuntu镜像

• 参考文档 http://www.howtoforge.com/local_debian_ubuntu_mirror
• 安装服务 ： sudo apt-get install apt-mirror apache2
• 配置apt-mirror(/etc/apt/mirror.list)

  ############# config ###################set base_path    /mnt/raid5/apt-mirror############# config ##################
  #修改默认路径
  set base_path    /mnt/raid5/apt-mirror
  
  set mirror_path  $base_path/mirror
  set skel_path    $base_path/skel
  set var_path     $base_path/var
  set cleanscript $var_path/clean.sh
  set defaultarch  amd64 #<running host architecture>
  set postmirror_script $var_path/postmirror.sh
  set run_postmirror
  set nthreads
  set _tilde
  #
  ############# end config ##############
  #Ubuntu 12.04 LTS
  deb http://mirrors.163.com/ubuntu precise main restricted universe multiverse
  deb http://mirrors.163.com/ubuntu precise-security main restricted universe multiverse
  deb http://mirrors.163.com/ubuntu precise-updates main restricted universe multiverse
  #deb http://mirrors.163.com/ubuntu precise-proposed main restricted universe multiverse
  #deb http://mirrors.163.com/ubuntu precise-backports main restricted universe multiverse
  #Ubuntu 14.04 LTS
  deb http://mirrors.163.com/ubuntu trusty main restricted universe multiverse
  deb http://mirrors.163.com/ubuntu trusty-security main restricted universe multiverse
  deb http://mirrors.163.com/ubuntu trusty-updates main restricted universe multiverse
  #没有同步源代码
  #deb-src http://mirrors.163.com/ubuntu precise main restricted universe multiverse
  #deb-src http://mirrors.163.com/ubuntu precise-security main restricted universe multiverse
  #deb-src http://mirrors.163.com/ubuntu precise-updates main restricted universe multiverse
  #deb-src http://mirrors.163.com/ubuntu precise-proposed main restricted universe multiverse
  #deb-src http://mirrors.163.com/ubuntu precise-backports main restricted universe multiverse
  
  clean http://mirrors.163.com/ubuntu

• 创建本地仓库: su - apt-mirror -c apt-mirror #切换为root用户，否则需要为apt-mirror创建密码（206为mirror）
• 清理本地仓库: sudo /bin/bash /mnt/raid5/apt-mirror/var/clean.sh
• 配置自动同步本地源: sudo vim /etc/cron.d/apt-mirror #打开注释掉的最后一行
• 让本地仓库可通过HTTP访问: sudo ln -sf /mnt/raid5/apt-mirror/mirror/mirrors.163.com/ubuntu/ /var/www/ubuntu

• 配置客户端源（在个人电脑上）
  cd /etc/apt
  sudo rm sources.list.d/* apt.conf.d/* -rf
  sudo cp sources.list{,.bak}
  #用下面三行替换掉sources.list里的全部内容
  deb [arch=amd64] http://10.0.0.206/ubuntu/ precise main restricted universe multiverse
  deb [arch=amd64] http://10.0.0.206/ubuntu/ precise-updates main restricted universe multiverse
  deb [arch=amd64] http://10.0.0.206/ubuntu/ precise-security main restricted universe multiverse

• 试试本地源
  sudo apt-get update