how do I get yum to update x86_64?

[sean darcy]

Seth Vidal wrote:

>interesting.
>
>what does /etc/rpm/platform have in it?

Tada.
Nothing. But since that did tell me what to google for, I found the yum 
list. Inserted x86_64-redhat-linux.

But that's only half my Xmas wish. Now it's showing ONLY x86_64.  From the 
yum list messages I take it this is a function of exactarch and 
transaction_color ( which I didn't see in macros ).

Thanks

sean