Schema backup

Hello all

I need to transfer a database installation from one host to another. I need
to dump all users, databases, schemas, stored procedures, triggers, etc. but
no actual data at all. What I try to achieve is a fresh clone ready to run.
I tried pg_dump -s and pg_dumpall, but somewhere I'm missing something, so:
what is the procedure to dump all database structure alone, and what is the
proper reload procedure?

TIA
cl.

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