[Yum] about yum option- update and upgrade?

seth vidal skvidal at phy.duke.edu
Fri Nov 14 12:57:16 UTC 2003


On Fri, 2003-11-14 at 03:08, SB CH wrote:
> Hello, all.
> 
> I'm a beginner of the yum.and I have some question.
> 
> * What is the difference between yum "update" and "upgrade"?
>    Surely, I saw man, but I can't understand.
>    If I execute yum upgrade at redhat 7.3, then my system 
>    is upgraded with 9.0?
> 
> * When I execute "yum update", is ther any  dependencies problem?
>   If some dependencies problem occurs, the system will be unstable. 

update does not considered obsoletes when preparing lists of packages to
be updated
upgrade considers obsoletes when preparing lists of packages to be
updated.

that's it.

-sv





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