由於一不小心更改了DNS，導致yum install PackageName報錯“Error: Cannot retrieve repository metadata (repomd.xml) for repository: fedora. Please verify its path and try again”看了下fedora.repo沒什麼異常啊。google下，說在/etc/hosts裏添加
80.239.156.215 mirrors.fedoraproject.org
213.129.242.84 mirrors.rpmfusion.org
再用yum install PacgageName還報錯。PYCURL ERROR 6鬱悶啊，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."。一想不對啊，在hosts裏添加了應該不解析啊。估計hosts沒起作用。service network restart 。在次安裝報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裏的rpmfusion註釋掉.OK了，不容易啊，就之小問題搞了半天。DNS 8.8.8.8很好
說下rpmfusion基本上你所需的軟件裏面都有，很好，這個源不錯的說。