Building an amd64 installer on an i386 machine

[Jason Heeris <jason.heeris@gmail.com>]

Hi,

I'm trying to install Debian on an amd64 machine using a USB stick and 
the testing netinst from 8th April 2009. I want the 2.6.29-1 kernel (for 
the ath9k module).

I got the built kernel package:

linux-image-2.6.29-1-amd64_2.6.29-3~snapshot.13357_amd64.deb

Trouble is, my current functioning computer is an i386 machine. So 
following the guide at

http://wiki.debian.org/DebianInstaller/Modify/CustomKernel

...I get to the end of Step 1: "Once you have the kernel-image.deb, 
install it for the next step. You do not need to boot into the new kernel."

But I can't, because as dpkg says: "package architecture (amd64) does 
not match system (i386)". Nuts.

Can I build the amd64 installer from my i386 machine? (Alternatively, is 
there an easier way to make the ath9k module available to the current 
installer?)

I would appreciate any help on this.

Thanks,
Jason