Any way to remove an installed package from the RPM database?

[Jon Danniken]

On 03/15/2016 03:43 AM, Florian Festi wrote:
> On 03/15/2016 11:27 AM, Florian Festi wrote:
>> On 03/15/2016 03:26 AM, Stuart Gathman wrote:
>>> On 03/14/2016 08:45 PM, Jon Danniken wrote:
>>>> Hello list,
>>>>
>>>> I have a package which I modified from the src.rpm and installed via RPM.
>>>>
>>>> Unfortunately, when I attempt to update my Fedora system (using dnf), it
>>>> offers to update my modified version of the application which brings in
>>>> several packages which conflict on my system.
>>>>
>>>> Is there any way to remove my modified application from the RPM database
>>>> without uninstalling it?  Conversely, is there any way to install an RPM
>>>> package without having it being added to the database?
>>> Use  exclude= in your dnf.conf to prevent updating that package. Works
>>> for yum also.
>>
>> Another solution is the Epoch: tag. It is used in version comparisons
>> even before the version. So setting the epoch to a number higher of the
>> Fedora package (No Epoch is treated as 0) will make all Fedora updates
>> "older" that your modified package. To be on the save side you could
>> increase the Epoch by more than one.
> 
> 
> To elaborate on this a bit:
> 
> The benefit of using the Epoch tag is that it does not depend on a
> specific configuration of the local yum/dnf instances but has this
> behavior embedded directly in the package itself. That way you could
> just offer your own local yum repositories to your machines and they
> would automatically update to your modified package without any special
> interaction. This is especially useful if you update your modified
> package more often or have multiple machines that need modified packages.
> 
> See createrepo and yum.conf/dnf.conf man pages for the details.

Thanks much, Florian.  I rebuilt the package using the Epoch: tag and
it's working great!

Jon