Fedora 4 Error in Transaction while setting Up Updates;
Tony Nelson
tonynelson at georgeanelson.com
Mon Jul 18 19:22:00 UTC 2005
At 8:09 AM +0100 7/18/05, Paul Howarth wrote:
>On Sun, 2005-07-17 at 20:28 -0400, Tony Nelson wrote:
>> At 2:31 PM +0200 7/17/05, Levin Fritz wrote:
>> >Hello Mirco,
>> >in general, mixing too many repositories is not a good idea, because the
>> >more repositories you use, the more likely there's some sort of conflict
>> >between them. In particular,
>> >
>> >* don't mix Livna and Freshrpms/Dag. They provide a lot of the same
>> >packages but the maintainers don't work together so there's a high
>> >chance of conflicts. You should either enable Livna and disable
>> >Freshrpms and Dag or disable Livna and enable Freshrpms and Dag.
>>
>> Since I don't really understand it myself and would like to know: is it
>> safe to do yum installs from mutually incompatible repos by enabling only
>> one of them at a time?
>
>Yes and no.
That's just what I was afraid of.
>Supposing there are two mutually incompatible repo sets, A and B. Both
>contain software that you want to use that isn't included in the other
>set.
>
>I would be inclined to enable normally the set (let's say A) that had
>the highest number of packages in it that I wanted. I could then install
>the remaining packages from B using:
>
># yum --enablerepo=B install pkg1 pkg2 ...
>
>This will work in many situations. However, it may be that some of the
>packages you want from B have dependencies on libraries or other
>packages that you are already sourcing from A. So some of your packages
>from A *may* be replaced by the versions from B. This *may* result in
>dependency errors next time you do a "yum update" without enabling B.
OK.
>As a result, you might consider disabling both A and B by default. But
>then you would miss out on updates (potentially important security
>updates) from both A and B.
Mmph.
>So the answer really is that it depends on your particular set of
>circumstances and requirements. But if you can source all your
>requirements without using mutually-incompatible repos, it'll make life
>simpler.
>
>> How well does using smartpm do to avoid such troubles? (Modulo such
>> packages being added later to a high priority repo such as extras and the
>> confusion that will result.)
>
>Good question. I don't know.
Ehh, someday I'll have to find out. I don't even know yet how well just
having different versions of libs works, and only have a vague idea of how
to do it properly.
:( I'm sorry that I won't be here for any reply, but I'll get it next week. :)
____________________________________________________________________
TonyN.:' <mailto:tonynelson at georgeanelson.com>
' <http://www.georgeanelson.com/>
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