Generate a dump file of the old database (if there are multiple databases
(_production, _development, _test), only the production database needs to be migrated):
mysqldump redmine_production > dump_file.sql
Migrate the database:
mysql -u username -p new_database_name < path/to/old_database_dump.sql
/var/www/<redmine_install_dir>/files
to <install_dir>/apps/redmine/htdocs/files
/srv/repos/svn
on the old server:mkdir /srv/repos
scp -r old_user@old_host:/srv/repos/svn /srv/repos
chown -R root:daemon /srv/repos/
chown -R root:daemon /srv/repos/svn/
chmod -R 0755 /srv/repos
chmod -R 0750 /srv/repos/svn