[Yum] "update --dry-run" equivalent output from yum or yum-utils?

[Troy Dawson]

I believe the command you are looking for is

   yum check-update

Troy

jimjcollins at comcast.net wrote:
> Hello,
>  
> Does yum or yum utils (repoquery likely) give the ability to 
> non-interactively and easily (single command or short sequence of 
> commands) generate a list of available update packages plus any new 
> dependent packages which would be required to to successfully install 
> those update packages on a server? "yum list updates" or "repoquery -a 
> --pkgnarrow=updates" don't appear to do the dependency analysis and from 
> other threads it seems that using "yum list updates" non-interactively 
> is frowned on (screen scraping thread, etc.). And "yum updates" can't 
> properly be used non-interactively as there appears to be no "defaultno" 
> option to answering the install question even if I wanted to screen 
> scrape, etc.
>  
> I read this yum list thread which indicates need for "yum list updates 
> --with-dependencies", but I can't see that such functionality has been 
> implemented in either yum 2.x or 3.x:
>  
> https://lists.dulug.duke.edu/pipermail/yum/2004-August/004974.html
>  
> Perhaps such functionality is in repoquery but I missed it?
>  
> I currently use "up2date --dry-run" for patch auditing on RHEL3 and 
> RHEL4 servers so I can view ahead of patch time exactly what packages 
> are required in order to bring a server  up to date relative to a set of 
> yum repositories. RedHat maintains an "up2date to yum" Rosetta stone of 
> sorts at http://kbase.redhat.com/faq/FAQ_80_11223.shtm but there is no 
> indication of a yum equivalent of "update --dry-run" on that page.
>  
> Thanks for any advice.
>  
> - Jim C.
> 
> 
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-- 
__________________________________________________
Troy Dawson  dawson at fnal.gov  (630)840-6468
Fermilab  ComputingDivision/LCSI/CSI DSS Group
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