Sometimes required to roll back unfinished transactions after aborting command such as
yum install blabla because when you run command then you will get a warning:
# yum update ... Setting up Update Process Resolving Dependencies There are unfinished transactions remaining. You might consider running yum-complete-transaction first to finish them.
To this warning from appearing you need to clean up unfinished transaction journals using command:
# yum-complete-transaction --cleanup-only ... Checking for new repos for mirrors Cleaning up unfinished transaction journals Cleaning up 2014-03-13.19:13.30