CentOS 5 yum更新源

如果你安装了CentOS系统，并且yum更新慢的话，可以考虑将更新源更换为 网易提供的源：mirrors.163.com

具体操作如下：

cd /etc/yum.repos.d/
mv CentOS-Base.repo CentOS-Base.repo.bak

vi CentOS-Base.repo

加入如下内容：

1. # CentOS-Base.repo   
2. #   
3. # This file uses a new mirrorlist system developed by Lance Davis for CentOS.   
4. # The mirror system uses the connecting IP address of the client and the   
5. # update status of each mirror to pick mirrors that are updated to and   
6. # geographically close to the client.    You should use this for CentOS updates   
7. # unless you are manually picking other mirrors.   
8. #   
9. # If the mirrorlist= does not work for you, as a fall back you can try the   
10. # remarked out baseurl= line instead.   
11. #   
12. #   
13. [base]   
14. name=CentOS-$releasever - Base   
15. #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os   
16. #baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/   
17. baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/   
18. gpgcheck=1   
19. gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5   
20. #released updates   
21. [updates]   
22. name=CentOS-$releasever - Updates   
23. #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates   
24. #baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/   
25. baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/   
26. gpgcheck=1   
27. gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5   
28. #packages used/produced in the build but not released   
29. [addons]   
30. name=CentOS-$releasever - Addons   
31. #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=addons   
32. #baseurl=http://mirror.centos.org/centos/$releasever/addons/$basearch/   
33. baseurl=http://mirrors.163.com/centos/$releasever/addons/$basearch/   
34. gpgcheck=1   
35. gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5   
36. #additional packages that may be useful   
37. [extras]   
38. name=CentOS-$releasever - Extras   
39. #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras   
40. #baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/   
41. baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/   
42. gpgcheck=1   
43. gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5   
44. #additional packages that extend functionality of existing packages   
45. [centosplus]   
46. name=CentOS-$releasever - Plus   
47. #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus   
48. #baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/   
49. baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/   
50. gpgcheck=1   
51. enabled=0   
52. gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5