2007/11/27, Stephen J. Gowdy <[log in to unmask]>:
> Why is it harmful? It only updates already installed RPMs? Isn't -U and -i
> potentially more harmful?
The only thing you may NEVER upgrade using -U or -F is the kernel.
Suppose that the new kernel isn't working properly, you can't roll
back because upgrading removes all the previous file(s). You want to
use -i (install) so that the new kernel is installed alongside the
current one (kernel is the one exception with respect to install
alongside an existing one).
Regards,
Patrick