Hi Tong,

I like the base_tgz approach of grml-debootstrap, if you'd like to implement 
that you've my ACK. :)

Regarding --base_sys: is this still valid with current grml-debootstrap?

And regarding the "layered module architecture": I noticed that your're playing 
with the module layout using live-initramfs. If you have any information that 
might help us in providing this feature or are interested in working on that 
I'd love to hear from you. :) 

thanks && regards,
-mika-