svnadmin dump /path/to/your/repo > yourreporname.dump
Copy the dump-file to your new server and ...
cd /path/to/your/new/repo svnadmin create reponame svnadmin load reponame < yourreponame.dump
svnadmin dump /path/to/your/repo > yourreporname.dump
cd /path/to/your/new/repo svnadmin create reponame svnadmin load reponame < yourreponame.dump