Upgrade 2 to 3 strategy/planning

[rossko57]

@drmacro

Hundreds of rrd4j messages in the log about not mapped for I/O.

Okay, start here

Could not create rrd4j database file error in OH3

Hi. I get this error message: 2021-01-05 14:19:00.714 [ERROR] [d4j.internal.RRD4jPersistenceService] - Could not create rrd4j database file ‘/var/lib/openhab/persistence/rrd4j/KNXTermostatGang_TermostatGang.rrd’: Read failed, file /var/lib/openhab/persistence/rrd4j/KNXTermostatGang_TermostatGang.rrd not mapped for I/O I get this on 5 items. I looked into the folder and this dbfiles was 0 kB. Have I done something wrong or is it a bug? Regards ROS

OH3 - Endless loop while loading

Yes. Run fix permissons ( menu 14 ) in sudo openhabian-config In case you don’t use openhabian-config run sudo chown -R openhab:openhab /var/lib/openhab/persistence/rrd4j The file needs to be created by the system itself.