step1 备份旧的yum源

    1. mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.back

    step2 编辑 /etc/yum.repos.d/CentOS-Base.repo 内容为

    1. # CentOS-Base.repo
    2. #
    3. # The mirror system uses the connecting IP address of the client and the
    4. # update status of each mirror to pick mirrors that are updated to and
    5. # geographically close to the client.  You should use this for CentOS updates
    6. # unless you are manually picking other mirrors.
    7. #
    8. # If the mirrorlist= does not work for you, as a fall back you can try the 
    9. # remarked out baseurl= line instead.
    10. #
    11. #
    12. [base]
    13. name=CentOS-6.10 - Base - mirrors.aliyun.com
    14. failovermethod=priority
    15. baseurl=http://mirrors.aliyun.com/centos-vault/6.10/os/$basearch/
    16. gpgcheck=1
    17. gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6
    19. #released updates 
    20. [updates]
    21. name=CentOS-6.10 - Updates - mirrors.aliyun.com
    22. failovermethod=priority
    23. baseurl=http://mirrors.aliyun.com/centos-vault/6.10/updates/$basearch/
    24. gpgcheck=1
    25. gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6
    27. #additional packages that may be useful
    28. [extras]
    29. name=CentOS-6.10 - Extras - mirrors.aliyun.com
    30. failovermethod=priority
    31. baseurl=http://mirrors.aliyun.com/centos-vault/6.10/extras/$basearch/
    32. gpgcheck=1
    33. gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6
    35. #additional packages that extend functionality of existing packages
    36. [centosplus]
    37. name=CentOS-6.10 - Plus - mirrors.aliyun.com
    38. failovermethod=priority
    39. baseurl=http://mirrors.aliyun.com/centos-vault/6.10/centosplus/$basearch/
    40. gpgcheck=1
    41. enabled=0
    42. gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6
    44. #contrib - packages by Centos Users
    45. [contrib]
    46. name=CentOS-6.10 - Contrib - mirrors.aliyun.com
    47. failovermethod=priority
    48. baseurl=http://mirrors.aliyun.com/centos-vault/6.10/contrib/$basearch/
    49. gpgcheck=1
    50. enabled=0
    51. gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6

    step3 建立包信息缓存

    1. yum clean all
    2. yum makecache