Upgrade to OH5 -> Could not create rrd4j database file

Setup, Configuration and Use Beginners
1
  • Platform information:
    • Hardware: Pi4
    • OS: openhabian
    • openHAB version:5.1

Hello,

I updated my Raspberry 4, OH4 32bit Setup to a new 64bit installation. I now get errors around the rrd4j persistence service (a lot of them from different items)

Could not create rrd4j database file ‘/var/lib/openhab/persistence/rrd4j/SolarEdge_SE10KRWS48BEN4_DC_Power_Value.rrd’: Invalid file header. File [/var/lib/openhab/persistence/rrd4j/SolarEdge_SE10KRWS48BEN4_DC_Power_Value.rrd] is not a RRD4J RRD file

I assume that is a problem of wrong permissions, but I am a bit lost. Is openhab the correct owner? Or openhabian? If connecting with ssh,I log in as “openhabian”: Permissions are as following:

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I tried the “fix permission” from openhabian-config.

Any Ideas on how to proceed? Can I simply delete the rrd4j folder and create it empty? How to do this to have correct permissions?

2

It’s probably not about permissions as it obviously says they’re no rrd4j files.
You can simply remove all files inside the rrd4j folder, but stop openHAB before you do.