CentOS添加中科大、163 yum源

首先备份CentOS-Base.repo

[root@richard yum.repos.d]# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

其次，下载对应版本的CentOS-Base.repo, 放入/etc/yum.repos.d/目录

CentOS6.x

[root@richard yum.repos.d]# wget http://lug.ustc.edu.cn/wiki/_export/code/mirrors/help/centos?codeblock=2

CentOS5.x

[root@richard yum.repos.d]# wget http://lug.ustc.edu.cn/wiki/_export/code/mirrors/help/centos?codeblock=1

运行yum clean all、yum makecache生成缓存

[root@NJZYY06 yum.repos.d]# yum clean all
Loaded plugins: aliases, changelog, downloadonly, fastestmirror, kabi, presto, refresh-packagekit, security, tmprepo, verify,
              : versionlock
Loading support for CentOS kernel ABI
Cleaning repos: base extras updates
Cleaning up Everything
Cleaning up list of fastest mirrors
11 delta-package files removed, by presto
[root@richard yum.repos.d]# yum makecache
Loaded plugins: aliases, changelog, downloadonly, fastestmirror, kabi, presto, refresh-packagekit, security, tmprepo, verify,
              : versionlock
Loading support for CentOS kernel ABI
base                                                                                                         | 9.4 kB     :
http://mirrors.ustc.edu.cn/centos/6/os/x86_64/repodata/repomd.xml: [Errno -1] Error importing repomd.xml for base: Damaged repomd.xml file
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again
[root@njzyy07 yum.repos.d]# yum makecache
Loaded plugins: aliases, changelog, downloadonly, fastestmirror, kabi, presto, refresh-packagekit, security, tmprepo, verify,
              : versionlock
Loading support for CentOS kernel ABI
Loading mirror speeds from cached hostfile
base                                                                                                         | 3.7 kB     :
base/group_gz                                                                                                |  kB     :
base/filelists_db                                                                                            | 5.9 MB     :
base/primary_db                                                                                              | 4.4 MB     :
base/other_db                                                                                                | 2.8 MB     :
extras                                                                                                       | 3.4 kB     :
extras/filelists_db                                                                                          |   kB     :
extras/prestodelta                                                                                           |   B     :
extras/primary_db                                                                                            |   kB     :
extras/other_db                                                                                              | 5.8 kB     :
updates                                                                                                      | 3.4 kB     :
updates/filelists_db                                                                                         | 2.2 MB     :
updates/prestodelta                                                                                          |  kB     :
updates/primary_db                                                                                           | 3.7 MB     :
updates/other_db                                                                                             |   MB     :
Metadata Cache Created

运行 yum update升级所有软件包（可以不选）

[root@richard yum.repos.d]# yum update

163网易源配置请参见163官网：http://mirrors.163.com/.help/centos.html