FIXME Not yet working
==== install EPEL ====
<code bash>
rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
</code>

==== enable yum rollback ====
<code bash>
echo ‘tsflags=repackage’ >> /etc/yum.conf

echo ‘%_repackage_all_erasures 1′ >> /etc/rpm/macros
</code>

==== Sample commands ====
Repackaged files are stored in /var/spool/repackage. Once you’ve run an update, check this directory and you will see the previous packages listed there.
<code bash>
ls -lha /var/spool/repackage
</code>

As of yum version 3.2.25 you should use the Yum history command. 

Yum history supports the following options – ‘info|list|summary|redo|undo|new’. Check the Yum man page for details of the options, and more suggestions on using history.

This will list all Yum updates, with a transaction ID number next to them.
<code bash>
yum history
</code>

To query the update, use this transaction ID number (let’s say 27 for this example) and the info option:
<code bash>
yum history info 27
</code>

If you then decide you want to roll-back this update, run history command with the undo option:
<code bash>
yum history undo 27
</code>

You can also use the rpm command to execute rollbacks to a previous state by time or date, e.g.
<code bash>
rpm -Uhv –rollback ’9:00 am’
rpm -Uhv –rollback ’4 hours ago’
rpm -Uhv –rollback ‘december 25′
</code>