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Subject: Re: Database file compatibility between OS
From: Laurenz Albe <laurenz.albe@cybertec.at>
To: zhigang wang <zhigang.wang@gmail.com>, pgsql-admin@lists.postgresql.org
Date: Fri, 22 Dec 2017 22:38:38 +0100
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zhigang wang wrote:
> My instance of PostgreSQL 10.1 is running on Solaris 10 x86. I am going to change the OS to Ubuntu 16.04. Here is my plan for the database server:
> - Shutdown the server
> - Copy the local db folder /data/db/pgsql to a storage server.
> - Install Ubuntu and PostgreSQL 10.1
> - Copy /data/db/pgsql from storage server back to local.
> - Start the server.
> Will this work? Or I have to pg_dump then pg_restore to recreate the database instance?

No; you'll have to dump and restore to migrate to a different architecture.

Yours,
Laurenz Albe