This document contains information about upgrading from previous version of NAV to 3.6.

Prior to making any changes to the existing installation, the following MUST be done to ensure correctness:

1. Make sure Cricket is not running.
2. Do a backup of all the rrd-files.
3. Remove all rrd-database tuples regarding Cricket (manually DELETE FROM rrd_file WHERE subsystem='cricket'; or with run_before_upgrading_to_3.6.py)
4. Run makecricketconfig.pl to fill the rrd-database with complete and correct data.
5. Remove old temperature datasources from the rrd-files as they are removed in the new Default files (with migrate_cricket.py).

When the rrd-database is refilled, the following steps must be executed:

1. Before removing any Cricket files make sure you have a backup of them. Especially if you have altered them yourself in any way.
2. Remove old configuration-files from the cricket-config directory (it is highly recommended to do this for the top level Defaults file aswell). This is only necessary for the following directories (NB: do not remove these directories):
   • routers/
   • router-interfaces/
   • switches/
   • switch-ports/
3. Copy new default configuration files to the cricket-config directory.
4. Run extract_cricket_oids.py to extract oids from the Default files and insert them into the snmpoid table.

Before running the new makecricketconfig make sure to do the database upgrade.