第一种方案
在国内163和搜狐提供很好的源，现在我们把它们俩添加到我们的源库。
1. 添加搜狐的源
进入网站http://mirrors.sohu.com/，在左边找到fedora目录，点击该行右边的help, 然后
下载fedora-sohu.repo和fedora-updates-sohu.repo, 放入/etc/yum.repos.d/
运行yum makecache生成缓存
2. 添加163的源
http://mirrors.163.com/.help/fedora.html
进入网站 http://mirrors.163.com/，在左边找到fedora目录，点击改行右边的使用帮助，然后
下载fedora-163.repo和fedora-updates-163.repo, 放入/etc/yum.repos.d/
运行yum makecache生成缓存
现在你可以运行命令 ls /etc/yum.repos.d 看看该目录下是不是多了两个源了呢， 
第二种方案
# vi /etc/yum.repos.d/fedora-cn.repo
=============================================================================
[fedora-mirrors.sohu.com]
name=Fedora $releasever - $basearch - sohu.com
failovermethod=priority
baseurl=http://mirrors.sohu.com/fedora/releases/$releasever/Everything/$basearch/os/
mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=fedora-$releasever&arch=$basearch
enabled=1
metadata_expire=7d
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$basearch
[fedora-debuginfo-mirrors.sohu.com]
name=Fedora $releasever - $basearch - Debug - sohu.com
failovermethod=priority
baseurl=http://mirrors.sohu.com/fedora/releases/$releasever/Everything/$basearch/debug/
mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=fedora-debug-$releasever&arch=$basearch
enabled=0
metadata_expire=7d
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$basearch
[fedora-source-mirrors.sohu.com]
name=Fedora $releasever - Source - sohu.com
failovermethod=priority
baseurl=http://mirrors.sohu.com/fedora/releases/$releasever/Everything/source/SRPMS/
mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=fedora-source-$releasever&arch=$basearch
enabled=0
metadata_expire=7d
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$basearch
[fedora-mirrors.163.com]
name=Fedora $releasever - $basearch - 163.com
failovermethod=priority
baseurl=http://mirrors.163.com/fedora/releases/$releasever/Everything/$basearch/os/
mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=fedora-$releasever&arch=$basearch
enabled=1
metadata_expire=7d
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$basearch
[fedora-debuginfo-mirrors.163.com]
name=Fedora $releasever - $basearch - Debug - 163.com
failovermethod=priority
baseurl=http://mirrors.163.com/fedora/releases/$releasever/Everything/$basearch/debug/
mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=fedora-debug-$releasever&arch=$basearch
enabled=0
metadata_expire=7d
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$basearch
[fedora-source-mirrors.163.com]
name=Fedora $releasever - Source - 163.com
failovermethod=priority
baseurl=http://mirrors.163.com/fedora/releases/$releasever/Everything/source/SRPMS/
mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=fedora-source-$releasever&arch=$basearch
enabled=0
metadata_expire=7d
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$basearch
=============================================================================
# vi /etc/yum.repos.d/fedora-update-cn.repo
=============================================================================
[updates-mirrors.sohu.com]
name=Fedora $releasever - $basearch - Updates - sohu.com
failovermethod=priority
baseurl=http://mirrors.sohu.com/fedora/updates/$releasever/$basearch/
mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=updates-released-f$releasever&arch=$basearch
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$basearch