Newbie questions about Kickstart

[Philip Prindeville <philipp_subx redfish-solutions com>]

Hi.

I'm trying to write an FC5 installer for my laptop, so that when I'm
on the road (and don't have access to the corporate intranet), I can
reimage my computer.

I've got a few questions about tailoring a ks.cfg file.

(1) when you specify "ks=cdrom", where does this imply the ks.cfg
  file to be?  In the top-level directory of the DVD?

(2) when your %post script is run, what is mounted where?  Where
  is the DVD root filesystem?  Apparently not /mnt/source any more
  ... because I threw "mount" into the script to display the filesystems
  just for fun and it wasn't in there.  I have some scripts that I want
  to be able to run off the DVD from there...

(3) where does the output of %post get logged?  vt3?  But not a file?

(4) when %post is run, have the repos been created yet?  I tried running
  yum, as in:

yum -y update kernel
...
yum -y --enablerepo=atrpms install madwifi madwifi-kmdl madwifi-hal-kmdl
...

   but I'm seeing:

Cannot find a valid baseurl for repo: core
Error: Cannot find a valid baseurl for repo: core
Loading "installonlyn" plugin
Setting up Update Process
Setting up repositories

Thanks,

-Philip