[CentOS] Remove all 3rd party rpms

[Louis Lagendijk]

On Tue, 2008-04-01 at 07:37 -0700, Michael A. Peters wrote:
> Joseph L. Casale wrote:
> > How does one do this?
> > 
> > Also, is it possible an rpm installed by rpm and not yum does not 
> > indicate what it provides to yum when yum queries needed dependencies 
> > for another package?
> > 
> > Thanks!
> > jlc
> > 
> > 
> 
> While you have gotten an answer that works - I believe there is a 
> cleaner way.
> 
> I don't remember the exact command - and it may require the installation 
> of a utilities package - but if you remove the 3rd party repositories 
> from your yum configuration, there is a command that will identify and 
> remove orphaned packages - packages which do not exist in any of the yum 
> repositories yum is configured to use.
> 
> Anyone recall what that command is?

yum list extras
Louis