yum问题

hththht

开始的时候我只改了core,updates,extra，如下
[core]
name=Fedora Core $releasever - $basearch
baseurl=ftp://202.38.97.230/fedora/linux/core/$releasever/$basearch/os/
#mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=core-$releasever&arch=$basearch
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora file:///etc/pki/rpm-gpg/RPM-GPG-KEY

在这种情况下可以正常使用yumex，但是添加 freshrpms之后就出错了，
[fedora-freshrpms]
name=Fedora Core $releasever - $basearch - Freshrpms
baseurl=ftp://ftp.sjtu.edu.cn/freshrpms/ayo/fedora/linux/$releasever/$basearch/freshrpms/
#mirrorlist=http://ayo.ie.freshrpms.net/fedora/linux/6/i386/freshrpms/
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-freshrpms
gpgcheck=1
出错信息是
Loading "installonlyn" plugin
Setting up Install Process
Setting up repositories
Reading repository metadata in from local files
primary.xml.gz                                                   63 kB 00:00
ftp://ftp.sjtu.edu.cn/freshrpms/ ... ata/primary.xml.gz: [Errno -1] Metadata file does not match checksum
Trying other mirror.
Error: failure: repodata/primary.xml.gz from fedora-freshrpms: [Errno 256] No more mirrors to try.

  求教～

hththht

求教，求教，谢谢