首先，把当前的源配置文件备份。
# mkdir ~/repo.bak# mv /etc/yum.repos.d/* ~/repo.bak
下面，以root权限创建、编辑 /etc/yum.repos.d/sjtu.repo
[freshrpms]
name=Freshrpms
baseurl=ftp://ftp.sjtu.edu.cn/freshrpms/ayo/fedora/linux/6/i386/freshrpms
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-freshrpms
gpgcheck=0
[core-sjtu]
name=core-sjtu
baseurl=ftp://ftp.sjtu.edu.cn/fedora/linux/core/6/i386/os/
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-freshrpms
gpgcheck=0
[coreupdates-sjtu]
name=core-updates-sjtu
baseurl=ftp://ftp.sjtu.edu.cn/fedora/linux/core/updates/6/i386
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-freshrpms
gpgcheck=0
[extras-sjtu]
name=extras-sjtu
baseurl=ftp://ftp.sjtu.edu.cn/fedora/linux/extras/6/i386
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-extras
gpgcheck=0
保存文件。
更新yum的缓存。
# yum makecache
