yum不能更新(俺已经搜索了论坛,没有类似的问题)!

头号地主

我的系统是FC4,系统装完后用yum update,出现下面的错误,更新任何软件都这样.
yum update
Repository freshrpms already added, not adding again
Setting up Update Process
Setting up repositories
livna 100% |=========================| 951 B 00:00
ftp://mirrors.kernel.org/fedora.us/fedora/fedora/1/i386/yum/stable/repodata/repomd.xml: [Errno 4] IOError: [Errno ftp error] timed out
Trying other mirror.
Cannot open/read repomd.xml file for repository: fedora-us-1-stable
failure: repodata/repomd.xml from fedora-us-1-stable: [Errno 256] No more mirrors to try.
我的yum.conf如下:
[main]
cachedir=/var/cache/yum
debuglevel=2
logfile=/var/log/yum.log
pkgpolicy=newest
distroverpkg=fedora-release
tolerant=1
exactarch=1

[fedora-us-1]
name=Fedora Core 1 -- Fedora US mirror
baseurl=ftp://mirrors.kernel.org/fedora.us/fedora/fedora/1/i386/yum/os

[fedora-us-1-updates]
name=Fedora Core 1 updates -- Fedora US mirror
baseurl=ftp://mirrors.kernel.org/fedora.us/fedora/fedora/1/i386/yum/updates

[fedora-us-1-stable]
name=Fedora Linux (stable) for Fedora Core 1 -- Fedora US mirror
baseurl=ftp://mirrors.kernel.org/fedora.us/fedora/fedora/1/i386/yum/stable

[freshrpms]
name=Fedora Linux $releasever - $basearch - freshrpms
baseurl=http://ayo.freshrpms.net/fedora/linux/$releasever/$basearch/freshrpms

platinum

我今天晚上也是同样的问题，可能主站的网络不好
我去了 MIRROR 看了看，修改了 yum.conf，换成别的域名、路径就可以了

头号地主

我猜也是网站的问题,可我对yum的配置不是很懂,不知道该怎么换成别的网站,还请指教!