Rolling back yum packages:
When you’ve installed/updates packages with yum or rpm, you can quite easily roll back the updates/installations using rpm.
For this, yum and rpm need to save roll back information, which they do not do by default.
To enable the roll back feature, do the following:
Add tsflags=repackage to /etc/yum.conf.
Add %_repackage_all_erasures 1 to /etc/rpm/macros. If /etc/rpm/macros does not exist, just create it.
You can now install, erase and update packages with yum and/or rpm, and they will save roll back information.
When you want to roll back, use rpm to do so.
You do this by specifying the –rollback switch and a date/time, like the examples below:
rpm -Uhv –rollback ’19:00′
rpm -Uhv –rollback ’8 hours ago’
rpm -Uhv –rollback ‘december 31′
rpm -Uhv –rollback ‘yesterday’