Re-installation CentOS 8

Hello everyone,

I plan to migrate my actual installation (LibreNMS 1.55 on Centos 7) toward the latest version on a fresh new CentOS 8.
I was wondering if there is a guide available somewhere in order to migrate ?
Otherwise, what should I consider to save in order to keep old entries, graphics and all ?

Thanks in advance,

Make a new installation, copy RRD’s to new installation, dump database on old installation and restore it to new installation.

Then of course make sure your .env and config.php are up to date, you should be able to just copy them from the old server.