Is it possible to reinitialize a database in postgres?

Question

PostgreSQL

Is it possible in postgres to reinitialize a database in an existing directory?
Well, that is, there is a folder with a database, is it possible to transfer this folder to another computer, and for postgres to open this database?

Answer 1

So reinitialize or move to another host?
reinitialize - remove directory, make initdb.
move to another host - turn off the database, copy the entire PGDATA including all the contents of all symlinks, start the database. Or call the regular pg_basebackup and use it to copy the running base (using the replication protocol).
It is possible only on the same hardware architecture.