How can I install 3,party packages with Network Install?

Hello

I have about 10 machines to upgrade from os10.3 to 11.2
Upgrading does not work so I have to reinstall everything :frowning:
Now my question:
I know how to setup a server to install from BUT how can I install automaticly the additional packages and how can I copy some config files like kde config for users etc. AUTOMATICLY?
I have saved all the downloaded rpms from the installation.
How can I put they that installation will take it and install?
The same as noted for some files to install.
Is there any documentation?

Thanks a lot

Beat

There is an option to include additional repositories during the boot proccess look for it.

as for the kde issue here is a switch from
kde 3.5 to kde 4.3 and the configuration files arenโ€™t compatible