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修改CentOS預設yum源為國內yum映象源

修改CentOS預設yum源為mirrors.163.com

1、首先備份系統自帶yum源配置檔案/etc/yum.repos.d/CentOS-Base.repo

  mv/etc/yum.repos.d/CentOS-Base.repo/etc/yum.repos.d/CentOS-Base.repo.backup

2、進入yum源配置檔案所在的資料夾(這一步必須)

  cd/etc/yum.repos.d/

3、下載163的yum源配置檔案到上面那個資料夾內

  CentOS7

    wgethttp://mirrors.163.com/.help/CentOS7-Base-163.repo

  CentOS6

    wgethttp://mirrors.163.com/.help/CentOS6-Base-163.repo

  CentOS5

    wgethttp://mirrors.163.com/.help/CentOS5-Base-163.repo

4、執行yum makecache生成快取

  yummakecache

5、這時候再更新系統就會看到以下mirrors.163.com資訊

  yum-yupdate


修改CentOS預設yum源為mirrors.aliyun.com

  步驟跟上面的一樣只是下載源不一樣

  CentOS7

    wget-O/etc/yum.repos.d/CentOS-Base.repohttp://mirrors.aliyun.com/repo/Centos-7.repo

  CentOS6

    wget-O/etc/yum.repos.d/CentOS-Base.repohttp://mirrors.aliyun.com/repo/Centos-6.repo

  CentOS5

    wget-O/etc/yum.repos.d/CentOS-Base.repohttp://mirrors.aliyun.com/repo/Centos-5.repo