使用yum更新时,我收到以下消息：
- yum update
- Loaded plugins: fastestmirror,priorities
- Loading mirror speeds from cached hostfile
- * atomic: www7.atomicorp.com
- * base: mirror.de.leaseweb.net
- * extras: mirror.de.leaseweb.net
- * updates: mirror.de.leaseweb.net
- 118 packages excluded due to repository priority protections
- Setting up Update Process
- No Packages marked for Update
那是什么意思 ？如何安装这些包？
