I have been trying unsuccessfully to get this option to run.

# Install all packages in /home/boot/packages. In live CD and
            # USB mode the option home= mounts the device on /home, so we
            # already have a boot directory with the Kernel and rootfs.
            if [ -d "/home/boot/packages" ]; then
                for pkg in /home/boot/packages/*.tazpkg
                do
                    tazpkg install $pkg
                done

I want to keep slitaz as small as possible and then add the modules I want at start time, it's does not seem to work