Fedora 4 Error in Transaction while setting Up Updates;

[Levin Fritz]

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.

* unless you like to live dangerously, disable anything that has devel, 
development or testing in its name.

The Planet CCRMA website says they're not yet done rebuilding the 
packages for FC4. So you might wanna disable that, too, at least until 
you get the rest running.

You should, for each repo that you use, import their public key. The 
repo's websites usually describe how to do that. In Fedora Core 4, the 
keys for fedora, fedora-updates and fedora-extras are included in the 
distribution, so you don't need to worry about those.

If this doesn't solve the "invalid keys" problem, please send us the 
exact error message.

HTH,
Levin