Daniel B. Thurman wrote:
Erm... I don't mean exact duplicates, but packages that are "left behind" and superseded by new packages. Sometimes newer packages are installed and older ones are not removed via the cleanup processes. There are exceptions of course, such as kernels, which must be removed manually, when desired.
I am basically looking for packages that are no longer needed when new packages are installed, so that I can reclaim disk space.
You may want to look at the package-cleanup --orphans command. This lists all packages on your system that are not in a currently-configured repository (for example, because they’ve been removed from Fedora, because you’ve manually downloaded and installed them from a third party, or because you’ve installed something from updates-testing because you think you can usefully test it).
Hope this helps,
James.