出現錯誤如下

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:///media/cdrom/repodata/repomd.xml: [Errno 14] Could not open/read file:///media/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

解決辦法就是把本地源關閉： 將/etc/yum.repos.d/CentOS-Media.repo裡面的enabled=1改成enabled=0即可 因為yum 尋包的順序應該先是本地源，再尋網路源。