Hello,
I manage a Linux server and was needing to know if there's any simple way to roll back packages.
I'm also somewhat of a novice so I never do things without any sure way of rolling back.
Please refrain from judging me but this is a Fedora 9 machine. I would be happy to upgrade but it isn't my decision to make. It's a strictly internal machine anyway.
It looks like someone had compiled and installed PHP 5.2.9-2 from source at some point before I ever started working here. I found a repository that has PHP 5.3.8 that I would like to install. However, if it doesn't work with what we need, I need to go back to 5.2.9-2.
I checked the PHP dependencies and there are a long list of them. I'm afraid that if I install the new PHP version then uninstall it, it will also remove that long list of other packages.
If I compile and install PHP 5.2.9-2 from source, will it automatically overwrite the other PHP install?

You've also asked this in June of last year. Since you're willingly running an obsolete version I'd say don't bother with any roll back methods but just make a full copy of the systems disks.