Error: Cannot retrieve repository metadata (repomd.xml) for repository: fedora.

 由于一不小心更改了DNS，导致yum install PackageName报错“Error: Cannot retrieve repository metadata (repomd.xml) for repository: fedora. Please verify its path and try again”看了下fedora.repo没什么异常啊。google下，说在/etc/hosts里添加

80.239.156.215         mirrors.fedoraproject.org

213.129.242.84         mirrors.rpmfusion.org

再用yum install PacgageName还报错。PYCURL ERROR 6郁闷啊，找了半天才找到http://curl.haxx.se/libcurl/c/libcurl-errors.html “CURLE_COULDNT_RESOLVE_HOST (6)

Couldn't resolve host. The given remote host was not resolved."。一想不对啊，在hosts里添加了应该不解析啊。估计hosts没起作用。service network restart 。在次安装报PYCURL ERROR 7。唉，

”Failed to connect() to host or proxy.”

Loaded plugins: presto, refresh-packagekit

Could not retrieve mirrorlist http://mirrors.rpmfusion.org/mirrorlist?repo=free-fedora-13&arch=i386 error was

14: PYCURL ERROR 7 - ""

Error: Cannot retrieve repository metadata (repomd.xml) for repository: rpmfusion-free. Please verify its path and try again

把hosts里的rpmfusion注释掉.OK了，不容易啊，就之小问题搞了半天。DNS 8.8.8.8很好

说下rpmfusion基本上你所需的软件里面都有，很好，这个源不错的说。