resizing swap space

[Ryan Golhar]

I have RHEL 5.2 installed an need to resize the swap space.  I followed 
the default installation so the entire drive is allocated to the root 
filesystem and some space was reserved for swap and for /boot.

I now need to shrink the root filesystem, but must unmount it first. The 
problem is I can't unmount the root filesystem.  So, I think I must boot 
from a CD, then modify the size of the filesystem.

I checked out a few liveCDs but non mentioned anything about containing 
the LVM tools or fsprogs utilities.  Does anyone know which livecd or 
how I can resize the root filesystem?