Bob,
What kind of issue are you running in to? I installed about 6-9 months ago on CentOS 7. I didn't write down any instructions though - I'm terrible about that. I only ran into a couple of issues that I can recall:
1) Dependencies - A few were missing and I had manually install them. I think the BackupPC install script listed the dependencies, and whether I had them installed or not. I would just cancel the installer, add the missing dependencies, and then re-run the installer. A couple of libraries, I couldn't identify the package off the top of my head, but I was able to locate which package had the library from a quick Google search.
2) The installer did not have a good init script for the newest version of CentOS I was using. I found a couple tips on the list serve and then wrote my own init script to start BackupPC on system startup for CentOS. The main issue was the temp file system in /var/run/BackupPC was not being created properly, so BackupPC would not start or wouldn't stay running.
If you can let me know what specific issue your having, I can try and give you a hand.
David
