Remaster amd64 iso to include some i386 packages?

[ryan <ryan.braun@ec.gc.ca>]

Hey guys,  I've created remastered lenny and squeeze install isos for our
org in the past,  but we've since moved to amd64 as our main platform,  and
I have some questions about trying to manually create a multiarch iso.

Previously,  I would do a vanilla install,  clean up apt,  then do any
system updates,  as well as our own packages.  Then pull everything out of
/var/cache/apt/archives and create a mini repo using dpkg-scanpackages.
Then define that repo in the preseed file.

This all worked well enough with a single i386 arch,  but I'm wondering if
apt/dpkg is smart enough for me to do the same with a base amd64 install,
then enable i386 support?  

I'd turn on i386 support and install any additional files via
preseed/late_command.  But do I need some kind of separate setup/pool for
the i386 packages?

Thanks.

-- 
Ryan Braun
Defence Weather Services
Chief Information Officer Branch, Environment Canada
CIV: 204-833-2500x2625 CSN: 257-2625 FAX: 204-833-2558
E-Mail: Ryan.Braun@ec.gc.ca