更改
/etc/yum.repos.d/下的
fedora.repo
fedora-updates.repo
两个文件中的两个段

[fedora]
name=Fedora $releasever – $basearch
failovermethod=priority
baseurl=http://ftp.sjtu.edu.cn/fedora/linux/releases/$releasever/Everything/$basearch/os/
ftp://ftp.sjtu.edu.cn/fedora/linux/releases/$releasever/Everything/$basearch/os/
ftp://ftp.cuhk.edu.hk/pub/Linux/fedora/releases/$releasever/Everything/$basearch/os/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$basearch

[updates]
name=Fedora $releasever – $basearch – Updates
failovermethod=priority
baseurl=http://ftp.sjtu.edu.cn/fedora/linux/updates/$releasever/$basearch/
ftp://ftp.cuhk.edu.hk/pub/Linux/fedora/updates/$releasever/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$basearch

只要是fedora就通用,包括fedora8,fedora9,fedora10,fedora11,fedora12