Fedora8添加修改yum源的方法:
 
找到yum PATH 文件, 路徑：/etc/yum.repos.d/
fedora.repo
fedora-updates.repo然后修改這2個文件。
# gedit fedora.repo

彈出文本編輯器后，把所有內容刪除。替換成下列內容。根據你自己的網速也可以精簡解個最快的源。

內容如下：

name=Fedora $releasever - $basearch
failovermethod=priority
#baseurl=http://download.fedora.RedHat.com/pub/fedora/linux/releases/$releasever/Everything/$basearch/os/
baseurl=
http://download.fedora.redhat.com/pub/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://mirrors.usc.edu/pub/linux/distributions/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://mirrors.cat.pdx.edu/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://ftp.iij.ad.jp/pub/linux/fedora/releases/$releasever/Everything/$basearch/os/
ftp://ftp.iij.ad.jp/pub/linux/fedora/releases/$releasever/Everything/$basearch/os/
http://mirror.aarnet.edu.au/pub/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://mirror.internode.on.net/pub/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://gulus.usherbrooke.ca/pub/distro/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://mirror.karneval.cz/pub/linux/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://sunsite.mff.cuni.cz/MIRRORS/fedora.redhat.com/linux/releases/$releasever/Everything/$basearch/os/
http://ftp-stud.hs-esslingen.de/pub/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://fedora.tu-chemnitz.de/pub/linux/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://mirror.fraunhofer.de/download.fedora.redhat.com/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://ftp.uni-bayreuth.de/linux/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://ftp.funet.fi/pub/mirrors/fedora.redhat.com/pub/fedora/linux/releases/$releasever/Everything/$basearch/os/
ftp://ftp.free.fr/mirrors/fedora.redhat.com/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://limestone.uoregon.edu/ftp/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://fedora.mirror.iweb.ca/releases/$releasever/Everything/$basearch/os/
ftp://ftp.cse.buffalo.edu/pub/Linux/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://mirror.cc.vt.edu/pub/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://mirrors.tummy.com/pub/fedora.redhat.com/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://mirrors.kernel.org/fedora/releases/$releasever/Everything/$basearch/os/
http://www.gtlib.gatech.edu/pub/fedora.redhat/linux/releases/$releasever/Everything/$basearch/os/
http://ftp.linux.ncsu.edu/pub/fedora/linux/releases/$releasever/Everything/$basearch/os/
http://ftp.iij.ad.jp/pub/linux/fedora/releases/$releasever/Everything/$basearch/os/
ftp://ftp.iij.ad.jp/pub/linux/fedora/releases/$releasever/Everything/$basearch/os/
http://ftp.yz.yamagata-u.ac.jp/pub/linux/fedora/linux/releases/$releasever/Everything/$basearch/os/