Can interrupted yum update be corrected?

[Timothy Murphy <tim birdsnest maths tcd ie>]

I was doing a yum update (under FC-6)
when the machine hung - while updating rekall-sql, to be precise -
after a number of packages had been updated.
I had to stop the process.
I then ran "yum update" again, and it updated the remaining packages,
and cleaned up after them.
But the first lot of packages were never cleaned up.

I wonder if there is any way of re-running the cleanup part of yum
by itself, in these circumstances?

-- 
Timothy Murphy  
e-mail (<80k only): tim /at/ birdsnest.maths.tcd.ie
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland