>Also, one kernel that can boot multiple archs can be handy in the (rare)
>case where an admin wants to move a set of drives from one machine to another.
>Perhaps if he is upgrading from a 2 to a 5, for example. All he would have
>to do would be to get a generic kernel (or leave one lying around) and 
>boot that one on the new machine. 

This ignores the boot block problem.  Different sparc architectures
need different boot blocks, do they not?

I think the single-kernel-all-architectures approach is a great one,
but i'm not sure that this is a good justification for it...


chris