Heavily customized Live-CD

[omer at no-log.org (Cédric Lucantis)]

> > You can probably do all this with a hook script. Add the script you
> > want to run in your LIVE_INCLUDE_CHROOT directory and set the
> > LIVE_HOOK variable. Assuming you have your LIVE_INCLUDE_CHROOT set
> > to /some/path/inc-root, write your script
> > in /some/path/inc-root/hook.sh and set LIVE_HOOK="/hook.sh". It will
> > be called in a chrooted environment. To do this cleanly, add
> > rm /hook.sh at the end of your script.
>
> I did look at the LIVE_HOOK variable. When exactly is it being run?
> AFAIU the xorg.conf is generated when booting the live cd.

It's called just after the packages installation. And yes you have a problem 
here :) I can't really help because I don't know how the xorg config works, 
but I guess the solution is to setup an init.d script which will be called at 
boot time too. As an example, I'm using the following hook to setup my usb 
key as casper's home (see man update-rc.d for more infos) :

# --------------------------------------------------------------------------
name=setup-casper-home.sh
script=/etc/init.d/${name}

cat > "$script" <<EOF
. /lib/lsb/init-functions
case "\$1" in
  start)
    log_daemon_msg "Setting up casper home"
    if ! grep "^LABEL=CASPER-HOME" /etc/fstab >/dev/null; then
      echo 'LABEL=CASPER-HOME /home/casper ext3 defaults' >> /etc/fstab
    fi
    mount /home/casper >/dev/null || true
    chown -R casper: /home/casper
    log_action_end_msg 0
    ;;
esac
EOF

chmod +x "$script"
update-rc.d "$name" start 90 1 2 3 4 5 .
# --------------------------------------------------------------------------

You can probably do something similar to hack your xorg.conf. Make sure you 
use a NN code high enough to be sure it will come after the default xorg 
config, but lower than 99 which is the code for kdm/xdm starting.

-- 
C?dric Lucantis