How do I innoculate a file from updates?

[ubersoft]

I recently had to manually install the xdelta-1.3.3 rpm in order for a specific script to work. Now yum keeps flagging it as an upgradable file (because 3.0.0-2fc15 is in the repository). Unfortunatley, the utility I'm using specifically says that the 3.0 version of xdelta is NOT compatible. So I need to find a way to innoculate xdelta-1.3.3 from yum's updating tools.

Is there a list I can add that package to that will take it outside the upgrade process? Barring that, is there a way to install the higher-level package while keeping the current one as well, so I have both?

Thanks for your help.

[flash3780]

I'm no expert, but I think that the -x option in yum allows you to exclude specific packages. Maybe it would be something like:

yum -x xdelta* update all

[ubersoft]

That will help for the moment, thanks. Is there any way I can permanently store that exception?

[marko]

You can edit /etc/yum.conf and add the line:

exclude=xdelta

Since it's just the one package the optional asterisk isn't needed but this would work too (assuming the likely situation
that there's nothing unrelated also starting with 'xdelta' that you want to update)

exclude=xdelta*

[ubersoft]

Perfect! Thank you both for your help.