How to update Grafana from version 4 to version 5

Grafana is a wonderful tool to display time series ans a lot of different metrics
The project is in a very active development state , and new features are added constantly.

The version 5 is particularly desirable since a new layout engine for the dashboard has been developed, and is quite powerfull !

So to update your install of Grafana from 4 to 5 you need to launch several command with root or a privileged user.

#optional step : save the grafana config
cp /var/lib/grafana/grafana.db /tmp/grafana.db.save

#then dowload the instalation package
wget https://s3-us-west-2.amazonaws.com/grafana-releases/release/grafana_5.0.4_amd64.deb

#then stop the grafana server
service grafana-server stop

#then install the package (sudo it if necessary)
dpkg -i grafana_5.0.4_amd64.deb

The service should automaticly restart when the update is done , but check that it is running with :

service grafana-server status

You should see something like this

? grafana-server.service – Grafana instance
Loaded: loaded (/usr/lib/systemd/system/grafana-server.service; disabled)
Active: active (running) since ven. 2018-04-20 17:47:41 CEST; 1 day 22h ago