求助：fedora14 运行yum update出错，

ciscom

运行YUM UPDATE 时下班中断，第二天再开机运行yum update时出错。
[root@fedora14 m]# yum makecache

已加载插件：fastestmirror, langpacks, presto, refresh-packagekit
Adding zh_CN to language list
Loading mirror speeds

from cached hostfile
Fedora/metalink                                                           |  21 kB     00:00   


Could not parse metalink https://mirrors.Fedoraproject.or ... r&arch=basearch error was
No repomd file

错误：File /var/cache/yum/i386/14/Fedora/metalink.xml does not exist

[root@fedora14 m]# yum install yum-fastestmirror

已加载插件：fastestmirror, langpacks, presto, refresh-packagekit
Adding zh_CN to language list
Loading mirror speeds

from cached hostfile

错误：Cannot retrieve metalink for repository: Fedora. Please verify its path and try again

[root@fedora14 m]# yum update

已加载插件：fastestmirror, langpacks, presto, refresh-packagekit
Adding zh_CN to language list
Loading mirror speeds

from cached hostfile

错误：Cannot retrieve metalink for repository: Fedora. Please verify its path and try again

[root@fedora14 m]#

ciscom

问题已经解决，原因是我在／etc/yum.repos.d／下建立了一个sohu的源，那个文件可能不正确，将那个源移除，将原来fedora的源恢复回来，再运行yum update时就可以了

不过另有一点倒是不太明白，我运行了

yum install yum-presto -y   

yum install fastestmirror

这两个命令后，原来的  fedora  的源还有必要保留吗？