Yum took looong time to install kernel

[Reid Rivenburgh]

Hi.  Yesterday I did a "yum update" and got the new kernel,
kernel.x86_64 0-2.6.25-1.fc9, among other packages.  The first time I
ran it, it seemed to hang at the kernel "Installing" step.  I killed
it after a few minutes and cleaned up the mess it caused (duplicate
packages that would have been removed later in the process).  Later, I
tried updating again with "-v -d 10", letting it go as long as needed.
 It finally finished:

Running Transaction
  Installing: kernel                       ######################### [1/3]
  Cleanup   : kernel                       ######################### [2/3]
  Erasing   : kmod-nvidia-2.6.25-0.204.rc8 ######################### [3/3]
Running "posttrans" handler for "changelog" plugin
Running "posttrans" handler for "refresh-packagekit" plugin
Running "posttrans" handler for "merge-conf" plugin
Transaction time: 3168.841

It froze at the 1/3 step again, but at least it eventually finished.
As you can see, that took a really long time, much longer than I've
ever seen yum take.  Does anyone know why?  Should I be concerned
about my system?  Was it just waiting for some resource to become
free?

Thanks, reid