Grafana version update
Original version 5.4.2
Update version 6.1.4
Originally installed through rpm-ivh
Backup data files
Cp / var/lib/grafana/grafana.db / root/
Upgrade
Wget https://dl.grafana.com/oss/release/grafana-6.1.4-1.x86_64.rpm
Yum localinstall grafana-6.1.4-1.x86_64.rpm
Service grafana-server restart