I use the following command to create liveCD
livecd-creator --config=/usr/share/livecd-tools/livecd-fedora-9-desktop-ipdt-test-build.ks --fslabel=F9-desktop-ipdt-test-R04-liveCD
As it turns out, I have to do regular updates to customization which I added that require re-running. This is time consuming because I have download the packages each time.
Is there a way to preserve the packages so I don't have to dowload each time I re-run?