CentOS リポジトリの優先順位を決められるパッケージ yum-priorities

[root@air php-5.3.3]# yum install yum-priorities
Loaded plugins: fastestmirror, priorities
Loading mirror speeds from cached hostfile
* addons: ftp.jaist.ac.jp
* base: ftp.jaist.ac.jp
* extras: ftp.jaist.ac.jp
* updates: ftp.jaist.ac.jp
Setting up Install Process