转载来自：http://www.qianshoublog.com/post/10651.html
Error Downloading Packages:
yum编译执行命令如下：
yum install ntpdate wget autoconf automakelibtool gcc-c++ zlib-devel libjpeg-devel sqlite-devel libcurl-devel pcre-develspeex-devel libedit-devel openssl-devel libogg-devel libvorbis-devel
报错信息如下：
Error Downloading Packages:
openssl-devel-1.0.1e-16.el6_5.14.i686:failure: Packages/openssl-devel-1.0.1e-16.el6_5.14.i686.rpm base: [Errno 256] No more mirrors to try.
openssl-devel-1.0.1e-16.el6_5.14.i686:failure: Packages/openssl-devel-1.0.1e-16.el6_5.14.i686.rpm base: [Errno 256] No more mirrors to try.
openssl-devel-1.0.1e-16.el6_5.14.i686:failure: Packages/openssl-devel-1.0.1e-16.el6_5.14.i686.rpm base: [Errno 256] No more mirrors to try.
openssl-devel-1.0.1e-16.el6_5.14.i686:failure: Packages/openssl-devel-1.0.1e-16.el6_5.14.i686.rpm from base: [Errno 256] No more mirrors to try.
解决思路：
1：执行yum clean all 清除缓存目录下的软件包及旧的headers；
2：接着执行 yum list 重新列出所有已经安装和可以安装的软件包；
3：重新执行上述命令，发现yum编译成功；
注意：如果执行 yum list 报错，那就检查一下yum仓库是否有问题；并清除/etc/yum.repos.d/下多余.repo文件！