On Mon, 2026-03-02 at 13:43 +0100, listy wrote:
> Is upgrade from ver. 13 to 16 possible?
Yes.
> -> $ sudo -u postgres pg_upgrade -D /var/lib/pgsql/data/
> You must identify the directory where the old cluster binaries reside.Please use the -b command-line option or the
PGBINOLDenvironment variable.
> Failure, exiting
>
> Or is a restoration from a backup the only way?
>
> If you cannot be bothered to read the documentation for pg_upgrade, then
dump and restore may be the only way.
Yours,
Laurenz Albe