由于使用的是VPN，在运行YUM过程中断，导致后面运行yum出现一些问题。
下面是查到的解决方案
For me it looks like you rebooted your computer (or it crashed) while you where in the process of upgrading packages. So new packages where installed, but old packages where not removed.
First look if you have any uncomplete transactions with:
1.首先查看是否有未完成的事务
yum-complete-transaction
2.查看是否有重复的包
package-cleanup --dupes
3.如果有的话请理这些重复的包
package-cleanup --cleandupes
