What was the path of the weewx.sdb file that you deleted? It should be
/var/lib/weewx/weewx.sdb.

You did not include a log, but I assume that weewxd is using that file, and
not one at /home/weewx/archive/weewx.sdb.

On Mon, Sep 14, 2020 at 1:28 PM John Blanchard <[email protected]>
wrote:

>
> I'm running Weewx 4.11 on Debian 10 (Buster) with a Vantage Vue station.
> I want erase all historic data from my computer and rebuild from the
> memory of the weather station. (I know there is a few months of data held
> in its memory)
> This is the process followed to date:-
>
> - stop weewx
> - delete the weewx.sdb file
> - delete the contents of /etc/weewx
> - delete the contents of /var/www
> - uninstall weewx
> - purge weewx
> - reboot computer
> - reinstall weewx and wait for an initial rebuild of data from the weather
> stations memory
>
> But I do not get a full history rebuild into the new weewx.sdb - the
> database only rebuilds from the date/time of the last download from the
> station to the computer - which is say the last 30 minutes.
> There is obviously a record of the date/time of the previously downloaded
> data stored somewhere which I haven't found.  Where is this held and how to
> I reset this to allow a full download, short of a reformat of the hard
> drive?
>
> Thanks
>
>
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