best partition scheme for later distro change?
I have used linux for 10 years or so. One problem I always seem to have is when I decide to upgrade, with a different distro. I use a lot of software off the net and much, if not all goes into /usr/bin, /usr/local/bin, as well as libs into /lib,/usr/lib and so on.
When I do a fresh install, all these are wiped clean. I always have to a backup first, then pick and choose among the backed up files which ones to copy over, since I don't want to over write the new system files.
Is there some partitioning scheme that can overcome this? I use rpms as much as possible to install individual programs from the net, but sometimes there are no rpms so I compile and then I can install wherever I want.
I hope the solution is not to build everthing myself.
Thanks for any ideas,