配置YUM源出现Errno 14 Could not open/read repomd.xml 错误的解决办法

[root@fancy yum.repos.d]# yum makecache

Loaded plugins: fastestmirror,refresh-packagekit,security
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* c6-media:
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
base | 3.7 kB 00:00
base/group_gz | 226 kB 00:00
base/filelists_db | 6.4 MB 00:06
base/other_db | 2.8 MB 00:02
file:///media/CentOS/repodata/repomd.xml: [Errno 14] Could not open/read file:///media/CentOS/repodata/repomd.xml
Trying other mirror.
file:///media/cdrecorder/repodata/repomd.xml: [Errno 14] Could not open/read file:///media/cdrecorder/repodata/repomd.xml
Trying other mirror.
file:///mnt/cdrom/repodata/repomd.xml: [Errno 14] Could not open/read file:///mnt/cdrom/repodata/repomd.xml
Trying other mirror.
Error: Cannot retrieve repository Metadata (repomd.xml) for repository: c6-media. Please verify its path and try again

解决办法就是把本地源关闭：

将/etc/yum.repos.d/CentOS-Media.repo里面的enabled=1改成enabled=0即可

因为yum 寻包的顺序应该先是本地源，再寻网络源。