[Freeipa-devel] Fedora 20 Release

[Petr Spacek]

On 16.12.2013 17:55, Alexander Bokovoy wrote:
> On Mon, 16 Dec 2013, Rich Megginson wrote:
>>>>>>> Simo thinks that this is a reason why 'downgrade package' with 1.3.1.x
>>>>>>> inevitably needs automated script which will purge two missing plugins
>>>>>>> from dse.ldif.
>>>>>>
>>>>>> We have an upgrade/downgrade framework, it should be easy to
>>>>>> disable/remove these plugins.
>>>>>>
>>>>>> Is that it?  Are there any other problems found attempting to downgrade
>>>>>> 1.3.2 to 1.3.1 in F20?
>>>>> Packaging issue -- epoch will have to be increased and maintained
>>>>> forever. It is weird but that's what it is.
>>>>
>>>> Sure.  But that's a one time thing.  And, it's only for F20 - once we go
>>>> to F21, we can remove the epoch.
>>> No, and that's key here. Once Epoch is in place, it is forever.
>>
>> Why?
> Because that's how RPM is built. When Epoch value is absent it is
> assumed to be equal to 0.
> 1.3.1.18-1 will be equal to 0:1.3.1.18-1 and less than 1.3.2.8-1,
> however, 1:1.3.1.18-1 will be greater than 1.3.2.8-1 because the latter
> is equal to 0:1.3.2.8-1.
>
> Once epoch is there, it is to stay.

Anyway, is it a real problem? Personally, I consider it like 
yet-another-version-number.

On my Fedora 19:
$ repoquery -qa | wc -l
46645
(packages in total)

$ repoquery -qa | grep -- '-[1-9][0-9]*:' | wc -l
6581
(packages with non-zero epoch)

-- 
Petr^2 Spacek