Error importing repomd.xml for updates: Damaged repomd.xml file 解决方法

yum 执行时出现错误：Error importing repomd.xml for updates: Damaged repomd.xml file

解决方法：
重新下载http://mirrors.sohu.com/fedora/releases/16/Everything/i386/os/repodata/repomd.xml,覆盖到/var/cache/yum/i386/16/fedora/