conflict in package on live and local server - revert process howto ?

["frank.guthorel@pandora.be" <frank@codedor.be>]

Hi,

I cannot seem to find enough information about reverting a package in a proper way, and was wondering whether people on this list could help me out or point me to a good help file somewhere. I'm not a total newbie, but sysadmin tasks were previously not my major concern, and I need to jump in now - hence my request.

I recently upgraded our local debian development server with an apt-get dist-upgrade. Everything went fine, some minor issues but neglectable.

Our live debian webserver however, is not that easily updatable due to certain restrictions from clients.

Now - we run Unison to keep files in sync, as we need to ship a lot of small files back and forth the whole time.

The local server is now running unison 2.13.16.
The live server is still running 2.10.2.

Needless to say, this results in unison not working, and stating that the versions are conflicting.

My first idea was to revert the local server to 2.10.2 ; so I fetched the .deb packages from the live server, and these are now residing on the local server
unison_2.10.2-1-i386.deb
unison_2.10.2-2-i386.deb

Now - I man'ed dpkg, and apt - but am not sure how to proceed with this ...

Could somebody detail me the process of reverting, in general or specifically for this issue ?

Thanks in advance,
Frank