On Thu, 21 Jun 2012 08:33:14 +0900
zxq9 <[log in to unmask]> wrote:

> Try the same command but disable protectbase and remove-with-leaves 
> plugins and see if the result changes.

There you go! After removing the protectbase and remove-leaves plugins,
then removing expat.i686, everything seems fine. Yum continuous working.

Thanks!

So you think there can be some dependency problem caused by one of
these plugins and that could be the reason expat had been removed or
replaced on my system?

Andras