> plan is something like :
> a = 4Go		# / for i386
> b = 512Mo	# shared swap
> e = 4Go		# / for amd64
> f = 32Mo	# shared /etc
> g = 100Go	# shared /home
>
> Any one sees/knows issues when sharing /etc between those two archs ?
>
probably not but saving 32MB isn't worth of work - there can be 
differences esp. in settings you will do on i386 and amd64.