If you have ever been greeted with the unfinished transactions remaining in Centos while trying to update yum, then follow these simple steps.
There are unfinished transactions remaining. You might consider running yum-complete-transaction first to finish them. The program yum-complete-transaction is found in the yum-utils package.
Login to your server via SSH and enter the following command:
# yum install yum-utils
Now enter the following:
# yum-complete-transaction
Note: You will have to repeat this command a few times until everything is completed.
If you want to remove yum-utils, enter the following:
# yum remove yum-utils