CentOS 软件源路径

yum clean metadata

yum clean all

vim /etc/yum.repos.d/centalt.repo         # 软件源及文件

[root@ithomer yum.repos.d]# cd /etc/yum.repos.d/
[root@ithomer yum.repos.d]# ls -l
total 64
-rw-r--r-- 1 root root  148 Nov 23 13:46 centalt_bk.repo
-rw-r--r-- 1 root root  168 Nov 23 13:47 centalt.repo
-rw-r--r-- 1 root root 2272 Mar 14  2014 CentOS-Base.repo
-rw-r--r-- 1 root root  638 Dec  1  2013 CentOS-Debuginfo.repo
-rw-r--r-- 1 root root  630 Dec  1  2013 CentOS-Media.repo
-rw-r--r-- 1 root root 4528 Dec  1  2013 CentOS-Vault.repo
-rw-r--r-- 1 root root  957 Nov  5  2012 epel.repo
-rw-r--r-- 1 root root 1056 Nov  5  2012 epel-testing.repo
-rw-r--r-- 1 root root  739 Mar 20  2013 mirrors-rpmforge
-rw-r--r-- 1 root root  717 Mar 20  2013 mirrors-rpmforge-extras
-rw-r--r-- 1 root root  728 Mar 20  2013 mirrors-rpmforge-testing
-rw-r--r-- 1 root root  122 Mar 18  2014 mongodb.repo
-rw-r--r-- 1 root root 2298 Mar  1  2014 remi.repo
-rw-r--r-- 1 root root 1128 Mar 20  2013 rpmforge.repo
-rw-r--r-- 1 root root  852 Nov  6  2010 webtatic.repo

问题1： [Errno 14] PYCURL ERROR 22

[root@ithomer yum.repos.d]# yum makecache
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
epel/metalink                                                                | 5.2 kB     00:00     
 * base: mirrors.163.com
 * epel: ftp.sjtu.edu.cn
 * extras: mirrors.aliyun.com
 * rpmforge: mirrors.neusoft.edu.cn
 * updates: mirrors.163.com
http://centos.alt.ru/repository/centos/6/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 403 Forbidden"
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: CentALT. Please verify its path and try again

解决：

vim /etc/yum.repos.d/centalt.repo

修改 baseurl=http://centos.alt.ru/repository/centos/6/$basearch/

为    baseurl=http://mirror.sysadminguide.net/centalt/repository/centos/6/$basearch/