1.备份
[root@centos1 xdebug-2.2.4]# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
2.下载对应版本repo文件, 放入/etc/yum.repos.d/
[root@centos1 XX]# mv /etc/CentOS6-Base-163.repo /etc/yum.repos.d/
[root@centos1 XX]# cd /etc/yum.repos.d/
[root@centos1 yum.repos.d]# ls
CentOS6-Base-163.repo CentOS-Debuginfo.repo CentOS-Vault.repo
CentOS-Base.repo.bak CentOS-Media.repo
3.运行yum makecache生成缓存
[root@centos1 yum.repos.d]# yum makecache
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
base | 3.7 kB 00:00
base/filelists_db | 5.1 MB 00:02
base/other_db | 2.2 MB 00:01
extras | 3.4 kB 00:00
extras/filelists_db | 31 kB 00:00
extras/prestodelta | 332 B 00:00
extras/other_db | 36 kB 00:00
updates | 3.4 kB 00:00
updates/filelists_db | 805 kB 00:01
updates/prestodelta | 91 kB 00:00
updates/other_db | 6.9 MB 00:15
Metadata Cache Created