dsconf was still experimental in 1.3.7. That's a really really old version ...
As pierre has said, you need version 2.1 if you need mdb.
You might be best using our docker image rather than your distro package, since the container is much newer. See:
> On 31 Mar 2022, at 22:25, iyagomailru Alexander Yakovlev <email@example.com> wrote:
> root@389ldap-test:~# apt show 389-ds
> Package: 389-ds
> Version: 22.214.171.124-1ubuntu1
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