[Yum] upgrade and update

[seth vidal]

On Thu, 2003-10-09 at 00:51, Rick Thomas wrote:
> This sounds like a good idea.  It makes things easier for the 
> uninitiated to understand.
> 
> I'd like to take this opportunity to revisit the issue I raised a 
> while ago in
> 	https://lists.dulug.duke.edu/pipermail/yum/2003-August/001777.html
> 
> Basically the issue is that "obsoletes" can mean two things, and we 
> need a way to distinguish between them.
> 
> Specifically "I obsolete him" can mean either of:
> 	1) If you install me, you must remove him.
> 	2) If you have him installed, then you must remove him and 
> install me instead.
> 
> The are different, and result in different actions, so we need a 
> way to tell yum which version of "obsolete" we mean.

obsoletes is an rpm concept - I didn't make it up.

foo obsoletes bar

that means:
if you install foo then bar will be replaced.

-sv