Best kickstart strategy for upgrading 32bit to 64bit?
I have an existing RHEL 4 ws 32bit machine I would like to upgrade to 64 bit. The hardware can handle it as identically spec'd hardware is running 64 bit elsewhere. After doing some reading it seems the best way to ensure a stable system is to kickstart the whole thing from scratch rather than piecemeal. The problem is, I'm not sure of the best way to do this, since I don't have a recent DVD, but I have full access to download isos/rpms from rhn.redhat.com.
We have a RHEL4 WS 64bit update 1 DVD that I can copy to the NW and kickstart off of. The machine I'm upgrading has no DVD/CD ROM. However I would like to start with the latest version which is update 4. I can download the isos from rhn.redhat.com, however that won't get me the same directory structure as the current kickstart location, which has directories like images, isolinux, redhat, etc., with all of the individual RPMs. Must I download the iso's then burn them to DVD, then copy them back to the NW and kickstart from there, or is there a way to download the iso's and "extract" them so it looks like a DVD, thereby letting me install individual RPMs as I see fit?
There is also an option to download all RPMs individually from rhn.redhat.com, however I don't think this will give me any directory structure, it will merely give me the RPMs. Is this sufficient for a kickstart? I can always kickstart off of update 1 then copy all of the RPMs and update them en masse, but that seems like a very time-consuming way to do it.
Thanks for any advice.