That's a lot of things to upgrade!
I practiced on a virtual machine first, so I could gain some confidence in
the process, migrate my customizations, and be sure not to lose any data.
There were some gotcha's on the skins side (they are documented in the
upgrade guide) but the data come through without a hitch.
So I basically installed the newest weewx version on the new hardware,
migrated the weewx.conf changes and custom skins, then restored the
database, and it's all good.
You *might* get a problem between RHEL 7 and 9 because the hardware naming
could change depending on your data source.

On Mon, Feb 20, 2023 at 3:28 PM [email protected] <[email protected]>
wrote:

> Currently, my organization is running weewx v3.8.2 on a redhat 7 server
> and python 2.7. Some new compliance requirements are forcing us to upgrade
> the OS underneath this.
>
> Id like to use RedHat 9, though it appears this isnt supported yet.
>
> My question is, is there an upgrade path that will take me to a recent
> weewx version and on python3? Id like to complete this upgrade before
> forklifting the whole thing over to redhat 8 or 9 if I can. Can I just
> install the latest weewx version for rhel 7 on the "old" system or is there
> a trick to also switching that to python3 at the same time?
>
> Thanks,
> Chris
>
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